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AH-64 Apache
Photo of tilted horizon showing helicopter flying above barren land with rectangular patches of green grass.
An AH-64 Apache from the U.S. Army's 101st Aviation Regiment in Iraq
General information
TypeAttack helicopter
National originUnited States
Manufacturer
StatusIn service
Primary usersUnited States Army
Number built5,000+ as of March 2024[1]
History
Manufactured1975–present
Introduction dateApril 1986[2]
First flight30 September 1975[3]
VariantsAgustaWestland Apache

The Boeing AH-64 Apache (/əˈpæi/ ə-PATCH-ee) is an American twin-turboshaft attack helicopter with a tailwheel-type landing gear and a tandem cockpit for a crew of two. Nose-mounted sensors help acquire targets and provide night vision. It carries a 30 mm (1.18 in) M230 chain gun under its forward fuselage and four hardpoints on stub-wing pylons for armament and stores, typically AGM-114 Hellfire missiles and Hydra 70 rocket pods. Redundant systems help it survive combat damage.

The Apache began as the Model 77 developed by Hughes Helicopters for the United States Army's Advanced Attack Helicopter program to replace the AH-1 Cobra. The prototype YAH-64 first flew on 30 September 1975. The U.S. Army selected the YAH-64 over the Bell YAH-63 in 1976, and later approved full production in 1982. After acquiring Hughes Helicopters in 1984, McDonnell Douglas continued AH-64 production and development. The helicopter was introduced to U.S. Army service in April 1986. The advanced AH-64D Apache Longbow was delivered to the Army in March 1997. Production has been continued by Boeing Defense, Space & Security. As of March 2024, over 5,000 Apaches have been delivered to the U.S. Army and 18 international partners and allies.

Primarily operated by the U.S. Army, the AH-64 has also become the primary attack helicopter of multiple nations, including Greece, Japan, Israel, the Netherlands, Singapore, and the United Arab Emirates. It has been built under license in the United Kingdom as the AgustaWestland Apache. American AH-64s have served in conflicts in Panama, the Persian Gulf, Kosovo, Afghanistan, and Iraq. Israel uses the Apache to fight in Lebanon and the Gaza Strip. British and Dutch Apaches were deployed to wars in Afghanistan and Iraq in 2001.

Development

[edit]

Advanced Attack Helicopter

[edit]
An early Hughes YAH-64 prototype with T-tail

After the AH-56 Cheyenne was cancelled in 1972 in favor of projects like the U.S. Air Force A-10 Thunderbolt II and the Marine Corps AV-8A Harrier, the United States Army sought an aircraft to fill an anti-armor attack role that would still be under Army command.[4][5] The 1948 Key West Agreement forbade the Army from owning combat fixed-wing aircraft. The Army wanted an aircraft better than the AH-1 Cobra in firepower, performance, and range. It would have the maneuverability for terrain following nap-of-the-earth (NoE) flying.[6] To this end, the U.S. Army issued a Request For Proposals (RFP) for the Advanced Attack Helicopter (AAH) program on 15 November 1972.[7][8] As a sign of the importance of this project, in September 1973 the Army designated its five most important projects as the "Big Five", with the AAH included.[9]

Proposals were submitted by Bell, Boeing Vertol/Grumman team, Hughes, Lockheed, and Sikorsky. In July 1973, the U.S. Department of Defense selected finalists Bell and Hughes Aircraft's Toolco Aircraft Division (later Hughes Helicopters). This began the phase 1 of the competition.[10] Each company built prototype helicopters and went through a flight test program. Hughes' Model 77/YAH-64A prototype first flew on 30 September 1975, while Bell's Model 409/YAH-63A prototype first flew on 1 October 1975. After evaluating the test results, the Army selected Hughes' YAH-64A over Bell's YAH-63A in 1976. Reasons for selecting the YAH-64A included its more damage tolerant four-blade main rotor and the instability of the YAH-63's tricycle landing gear arrangement.[11][12]

A YAH-64A prototype in 1982

The AH-64A then entered phase 2 of the AAH program under which three pre-production AH-64s would be built, additionally, the two YAH-64A flight prototypes and the ground test unit were upgraded to the same standard.[11] Weapons and sensor systems were integrated and tested during this time, including the laser-guided AGM-114 Hellfire missile.[13] Development of the Hellfire missile had begun in 1974, originally known by the name of Helicopter Launched, Fire and Forget Missile ('Hellfire' being a shortened acronym),[14] for the purpose of arming helicopter platforms with an effective anti-tank missile.[citation needed]

Into production

[edit]

In 1981, three pre-production AH-64As were handed over to the U.S. Army for Operational Test II. The Army testing was successful, but afterward it was decided to upgrade to the more powerful T700-GE-701 version of engine, rated at 1,690 shp (1,260 kW). The AH-64 was named the Apache in late 1981, after the Apache tribe, following the tradition of naming Army helicopters after Native American tribes. It was approved for full-scale production in 1982.[15] In 1983, the first production helicopter was rolled out at Hughes Helicopter's facility at Mesa, Arizona. Hughes Helicopters was purchased by McDonnell Douglas for $470 million in 1984 (equivalent to $1,378,000,000 in 2023).[16] The helicopter unit later became part of The Boeing Company with the merger of Boeing and McDonnell Douglas in August 1997.[17] In 1986, the incremental or flyaway cost for the AH-64A was $7M and the average unit cost was approximately $13.9M based on total costs.[16]

A 1985 Department of Defense engineering analysis by the inspector general's office reported that significant design deficiencies still needed to be addressed by the contractor. The Army project manager Col. William H. Forster published a list of 101 action items. In 1986, the four 22-foot-long main rotor blades, each made from steel and composite material glued together to maximize strength and minimize weight by the Composite Structures Division of Alcoa Composites, were added to the list. The steel-composite rotors could not meet the Army specification for a life of 1500 flight hours, and needed replacement after just 146 hours. After six changes to the design, the rotor blade life was extended to 1400 hours by early 1991.[18]

Further development

[edit]

During the 1980s, McDonnell Douglas studied an AH-64B, featuring an updated cockpit, new fire control system and other upgrades. In 1988, funding was approved for a multi-stage upgrade program to improve sensor and weapon systems.[19] Technological advance led to the program's cancellation in favor of more ambitious changes. In August 1990, development of the AH-64D Apache Longbow was approved by the Defense Acquisition Board. The first AH-64D prototype flew on 15 April 1992.[20] Prototype testing ended in April 1995. During testing, six AH-64D helicopters were pitted against a bigger group of AH-64As. The results demonstrated the AH-64D to have a sevenfold increase in survivability and fourfold increase in lethality compared to the AH-64A.[21][22][23] On 13 October 1995, full-scale production was approved;[24] a $1.9-billion five-year contract was signed in August 1996 to upgrade 232 AH-64As into AH-64Ds.[25] On 17 March 1997, the first production AH-64D flew. It was delivered on 31 March.[26]

A YAH-64A in 1984

Portions of the Apache are produced by other aerospace firms. AgustaWestland has produced a number of components for the Apache both for the international market and for the British Army's AgustaWestland Apache.[27] Since 2004, Korea Aerospace Industries has been the sole manufacturer of the Apache's fuselage.[28][29][30] Fuselage production had previously been performed by Teledyne Ryan Aeronautical. The transfer of fuselage production led to a prolonged legal dispute between Teledyne Ryan and Boeing.[31]

The AH-64D program cost a total of $11 billion (~$15.6 billion in 2023) through 2007.[32] In April 2006, Boeing was awarded a $67.6 million (~$98.3 million in 2023) fixed-price contract for the remanufacture of several existing U.S. AH-64As to the AH-64D configuration. Between May 2009 and July 2011, a further five contracts were issued to remanufacture batches of AH-64As into AH-64Ds.[33] Since 2008, nations operating the older Apaches have been urged to undertake modernization programs as support for the AH-64A is withdrawn.[34]

By May 2019, Boeing tested in a wind tunnel a compound Apache scale model with a pusher propeller, a small wing to increase range and speed, and a counter-torque tail rotor like the cancelled Lockheed AH-56 Cheyenne of the 1960s. It competed for the U.S. Army's FLRAA unveiled in April, developed from the Future Vertical Lift Capability Set 3 (medium rotorcraft) without the attack requirement, while the U.S. Army's FARA should replace the retired Bell OH-58 Kiowa scout and up to half of the AH-64 fleet.[35]

Design

[edit]

Overview

[edit]
Apache
version
Engine version Engine power
AH-64A+/D[36] General Electric T700-701 1,696 shp (1,265 kW)[15]
AH-64A+/D General Electric T700-701C 1,890 shp (1,410 kW)[37]
AH-64E General Electric T700-701D 1,994 shp (1,487 kW)[38]
WAH-64D Rolls-Royce Turbomeca RTM322 2,100 shp (1,600 kW)[39]
AH-64 Apache in flight

The AH-64 Apache has a four-blade main rotor and a four-blade tail rotor.[40] The crew sits in tandem, with the pilot sitting behind and above the co-pilot/gunner.[41] Both crew members are capable of flying the aircraft and performing methods of weapon engagements independently.[42] The AH-64 is powered by two General Electric T700 turboshaft engines with high-mounted exhausts on either side of the fuselage.[43][44] Various models of engines have been used on the Apache; those in British service use engines from Rolls-Royce. In 2004, General Electric Aviation began producing more powerful T700-GE-701D engines, rated at 2,000 shp (1,500 kW) for AH-64Ds.[45]

The crew compartment and rotor blades are designed to sustain a hit from 23 mm (0.91 in) rounds. The airframe includes some 2,500 lb (1,100 kg) of protection and has a self-sealing fuel system to protect against ballistic projectiles.[46] The crew compartment also incorporates a transparent blast shield between the pilot and gunner seats so that at least one crew member can survive in the event of a direct hit, but the canopy and windows are otherwise unrated against ballistic threats.[47]

The aircraft was designed to meet the crashworthiness requirements of MIL-STD-1290,[48] which specifies minimum requirement for crash impact energy attenuation to minimize crew injuries and fatalities. This was achieved through incorporation of increased structural strength, crashworthy landing gear, seats and fuel system.

On a standard day, when temperatures are 59 °F (15 °C), the AH-64 has a vertical rate of climb of 1,775 feet per minute (541 m/min), and a service ceiling of 21,000 feet (6,400 m).[49] However, on a hot day, when temperatures are 70 °F (21 °C), its vertical rate of climb is reduced to 1,595 fpm (486 m/min), and service ceiling is reduced to 19,400 feet (5,900 m) due to less dense air.[50]

Avionics and targeting

[edit]
The gunner's position in the AH-64D Longbow Apache.

One of the revolutionary features of the Apache was its helmet mounted display, the Integrated Helmet and Display Sighting System (IHADSS);[51][52] among its capabilities, either the pilot or gunner can slave the helicopter's 30 mm automatic M230 Chain Gun to their helmet, making the gun track head movements to point where they look. The M230E1 can be alternatively fixed to a locked forward firing position, or controlled via the Target Acquisition and Designation System (TADS).[53][54] On more modern AH-64s, the TADS/PNVS has been replaced by Lockheed Martin's Arrowhead (MTADS) targeting system.[55]

U.S. Army engagement training is performed under the Aerial Weapons Scoring System Integration with Longbow Apache Tactical Engagement Simulation System (AWSS-LBA TESS), using live 30 mm and rocket ammunition as well as simulated Hellfire missiles. The Smart Onboard Data Interface Module (SMODIM) transmits Apache data to an AWSS ground station for gunnery evaluation.[56] The AH-64's standard of performance for aerial gunnery is to achieve at least 1 hit for every 30 shots fired at a wheeled vehicle at a range of 800–1,200 m (870–1,310 yd).[57]

British Apache pilot with IHADSS

The AH-64 was designed to perform in front-line environments, and to operate at night or day and during adverse weather conditions.[58] Various sensors and onboard avionics allows the Apache to perform in these conditions; such systems include the Target Acquisition and Designation System, Pilot Night Vision System (TADS/PNVS), passive infrared countermeasures,[59] GPS, and the IHADSS.[53][58] Longbow-equipped Apaches can locate up to 256 targets simultaneously within 50 km (31 mi).[60] In August 2012, 24 U.S. Army AH-64Ds were equipped with the Ground Fire Acquisition System (GFAS), which detects and targets ground-based weapons fire sources in all-light conditions and with a 120° visual field. The GFAS consists of two sensor pods working with the AH-64's other sensors, and a thermographic camera that precisely locates muzzle flashes.[61]

In 2014, it was announced that new targeting and surveillance sensors were under development to provide high-resolution color imagery to crews, replacing older low definition black-and-white imaging systems.[62] Lockheed received the first contract in January 2016, upgrading the Arrowhead turret to provide higher-resolution color imaging with longer ranges and a wider field of view.[63] In 2014, the U.S. Army was adapting its Apaches for increased maritime performance as part of the Pentagon's rebalance to the Pacific. Additional avionics and sensor improvements includes an extended-range radar capable of detecting small ships in littoral environments, software adaptions to handle maritime targets, and adding Link 16 data-links for better communications with friendly assets.[64]

Armament and configurations

[edit]
Mission[40] Hellfire 30 mm
rounds
Hydra 70 Maximum
speed
(knots)
Rate of
climb
(ft/min)
Endurance
(hours)
Anti-Armor 16 1,200 0 148 990 2.5
Covering Force 8 1,200 38 150 860 2.5
Escort 0 1,200 76 153 800 2.5

The AH-64 is adaptable to numerous different roles within its context as Close Combat Attack (CCA).[40] In addition to the 30 mm M230E1 Chain Gun, the Apache carries a range of external stores and weapons on its stub-wing pylons, typically a mixture of AGM-114 Hellfire anti-tank missiles, and Hydra 70 general-purpose unguided 70 mm (2.756 in) rockets.[65] The Hellfire is designed to defeat stationary or moving tanks as far away as 6,500 meters.[66]

Since 2005, the Hellfire missile outfitted with a thermobaric warhead is designated AGM-114N; this missile version is intended for use against ground forces and urban warfare operations.[67][68] In October 2015, the U.S. Army ordered its first batch of Advanced Precision Kill Weapon System (APKWS) guided 70 mm rockets for the Apache.[69]

Starting in the 1980s, the Stinger and AIM-9 Sidewinder air-to-air missiles and the AGM-122 Sidearm anti-radiation missile were evaluated for use upon the AH-64.[70][71] The Stinger was initially selected; the U.S. Army was also considering the Starstreak air-to-air missile.[70][72] External fuel tanks can also be carried on the stub wings to increase range and mission time.[40] The stub-wing pylons have mounting points for maintenance access; these mountings can also be used to secure personnel externally for emergency transport.[73] Stinger missiles are often used on non-U.S. Apaches, as foreign forces do not have as many air superiority aircraft to control the skies.[74] The AH-64E initially lacked the ability to use the Stinger to make room for self-defense equipment, but the capability was added back following a South Korean demand.[75]

AH-64 Apache weapon loadout

The AH-64E is able to control unmanned aerial vehicles (UAVs), used by the U.S. Army to perform aerial scouting missions previously performed by the OH-58 Kiowa. Apaches can request to take control of an RQ-7 Shadow or MQ-1C Grey Eagle from ground control stations to safely scout via datalink communications. There are four levels of UAV interoperability (LOI): LOI 1 indirectly receives payload data; LOI 2 receives payload data through direct communication; LOI 3 deploys the UAV's armaments; and LOI 4 takes over flight control. UAVs can search for enemies and, if equipped with a laser designator, target them for the Apache or other friendly aircraft.[76][77]

Boeing has suggested that the AH-64 could be fitted with a directed energy weapon. The company has developed a small laser weapon, initially designed to engage small UAVs, that uses a high-resolution telescope to direct a 2–10 kW beam with the diameter of a penny out to a range of 5.4 nmi (10.0 km; 6.2 mi). On the Apache, the laser could be used to destroy enemy communications or radio equipment.[78] On 26 June 2017, the Army and Raytheon announced they had successfully completed the first-ever helicopter-based flight demonstration of a high energy laser system from an AH-64.[79]

On 14 July 2016, it was reported that the AH-64 had successfully completed testing of the MBDA Brimstone anti-armor missile.[80] In January 2020, the U.S. Army announced it was fielding the Spike NLOS missile on AH-64E Apaches as an interim solution to acquire new munitions that provide greater stand-off capabilities.[81]

Operational history

[edit]

United States

[edit]

Twentieth century

[edit]
AH-64A Apache helicopter returns from SOLID SHIELD '89 exercise
AH-64 on exercises, 1997
AH-64A on Operation Joint Guard in the Balkans, 1998

In January 1984, the U.S. Army formally accepted its first production AH-64A and training of the first pilots began later that year.[82][83] The first operational Apache unit, 7th Battalion, 17th Cavalry Brigade, began training on the AH-64A in April 1986 at Fort Hood, Texas.[84][85] Two operational units with 68 AH-64s first deployed to Europe in September 1987 and took part in large military exercises there.[84][86]

Upon fielding the Apache, capabilities such as the FLIR's use in extensive night operations made it clear that it was capable of operating beyond the forward line of own troops (FLOT) to which previous attack helicopters were normally restricted.[87] It was discovered that the Apache was coincidentally fitted with the Have Quick UHF radio system used by the U.S. Air Force, allowing inter-service coordination and joint operations such as the joint air attack teams (JAAT). The Apache has operated extensively with close air support (CAS) aircraft, such as the USAF's Fairchild Republic A-10 Thunderbolt II and the USMC's McDonnell Douglas AV-8B Harrier II, often acting as a target designator to conserve the Apache's own munitions.[88] The Apache was first used in combat in 1989, during Operation Just Cause, the invasion of Panama. It participated in over 240 combat hours, attacking various targets, mostly at night.[89][90] General Carl Stiner, the commander of the operation, stated: "You could fire that Hellfire missile through a window from four miles away at night."[91]

Nearly half of all U.S. Apaches were deployed to Saudi Arabia following Iraq's invasion of Kuwait in 1990.[91] During Operation Desert Storm on 17 January 1991, eight AH-64As guided by four MH-53 Pave Low IIIs destroyed part of Iraq's radar network in the operation's first attack,[92] allowing the attack aircraft to evade detection.[93] Each Apache carried an asymmetric load of Hydra 70 rockets, Hellfires, and one auxiliary fuel tank.[94] During the 100-hour ground war, a total of 277 AH-64s took part, destroying 278 tanks, numerous armored personnel carriers and other Iraqi vehicles,[92][95] for a total of over 500 kills.[96] One AH-64 was lost in the war, crashing after a close range rocket-propelled grenade (RPG) hit; the crew survived.[97] While effective in combat, the AH-64 presented serious logistical difficulties. Findings reported in 1990 stated "maintenance units could not keep up with the Apache's unexpectedly high work load..."[98] To provide spare parts for combat operations, the U.S. Army unofficially grounded all other AH-64s worldwide; Apaches in the theater flew only one-fifth of planned flight-hours.[99] Such problems were evident before the Gulf War.[100]

The AH-64 played roles in the Balkans during separate conflicts in Bosnia and Kosovo in the 1990s.[101][102] During Task Force Hawk, 24 Apaches were deployed to a land base in Albania in 1999 for combat in Kosovo. These required 26,000 tons of equipment to be transported over 550 C-17 flights, at a cost of US$480 million.[103] During these deployments, the AH-64 encountered problems, such as deficiencies in training, night vision equipment, fuel tanks, and survivability.[104][105]

In 2000, Major General Dick Cody, 101st Airborne's commanding officer, wrote a strongly worded memo to the Chief of Staff about training and equipment failures.[106] Almost no pilots were qualified to fly with night vision goggles, preventing nighttime operations.[107] The Washington Post printed a front-page article on the failures, commenting: "The vaunted helicopters came to symbolise everything wrong with the Army as it enters the 21st century: Its inability to move quickly, its resistance to change, its obsession with casualties, its post-Cold War identity crisis".[108] Although no Apache combat missions took place, two were lost in training exercises.[109] An effective network of Yugoslav air defenses stopped Apaches from being deployed on combat missions in Kosovo.[107][109]

21st century

[edit]
AH-64 over Baghdad, Iraq on a reconnaissance mission, 2007
AH-64D helicopters gather for an operation
AH-64 during an extraction exercise at Camp Bondsteel, Kosovo in 2007 with a soldier on the avionics bay.
Extraction exercise with soldier "riding shotgun" on an Apache
AH-64 stationed in Alaska, backdropped by the northern lights
Ski-equipped AH-64D on exercises in Alaska

U.S. Apaches served in Operation Enduring Freedom in Afghanistan from 2001.[110] It was the only Army platform capable of providing accurate CAS duties for Operation Anaconda, often taking fire and quickly repaired during the intense early fighting.[111] Apaches often flew in small teams with little autonomy to react to threats and opportunities, requiring lengthy dialogue with centrally micromanaged command structures.[112] U.S. AH-64Ds typically flew in Afghanistan and Iraq without the Longbow Radar in the absence of armored threats.[113] On 21 December 2009, a pair of U.S. Apaches attacked a British-held base in a friendly fire incident, killing one British soldier.[114]

In 2003, the AH-64 participated in the invasion of Iraq during Operation Iraqi Freedom.[115] On 24 March 2003, 31 Apaches were damaged; one was shot down in an unsuccessful attack on an Iraqi Republican Guard armored brigade near Karbala.[116] Iraqi tank crews had set up a "flak trap" among terrain and effectively employed their guns.[117][118] Iraqi officials claimed a farmer with a Brno rifle shot down the Apache,[119] but the farmer denied involvement.[120] The AH-64 came down intact and the crew were captured;[117] it was destroyed via air strike the following day.[121][122] This incident had significant consequences for the AH-64 helicopter because it revealed an important vulnerability. Despite being considered by army aviators as flying tanks at the time, it became clear that the AH-64 was actually highly susceptible to rifle fire. As a result, the army quietly disclosed in early 2006 that AH-64s would no longer have a major role in carrying out attacks deep inside enemy lines.[123]

AH-64 engaging Taliban insurgents over Afghanistan

By the end of U.S. military operations in Iraq in December 2011, several Apaches had been shot down by enemy fire and lost in accidents. In 2006, an Apache was downed by a Soviet-made Strela 2 (SA-7) in Iraq, despite it being typically able to avoid such missiles.[124] In 2007, four Apaches were destroyed on the ground by insurgent mortar fire using web-published geotagged photographs taken by soldiers.[125] Several AH-64s were lost to accidents in Afghanistan.[126][127][128][129] Most Apaches that took heavy damage were able to continue their missions and return safely.[118] By 2011, the U.S. Army Apache fleet had accumulated more than 3 million flight hours since the first prototype flew in 1975.[130] A DOD audit released in May 2011 found that Boeing had frequently overcharged the U.S. Army for routine spare parts in helicopters like the Apache, ranging from 33.3 percent to 177,475 percent.[131]

On 21 February 2013, the 1st Battalion (Attack), 229th Aviation Regiment at Joint Base Lewis–McChord became the first U.S. Army unit to field the AH-64E Apache Guardian; a total of 24 AH-64E were received by mid-2013.[132] On 27 November 2013, the AH-64E achieved initial operating capability (IOC).[133] In March 2014, the 1st–229th Attack Reconnaissance Battalion deployed 24 AH-64Es to Afghanistan in the type's first combat deployment.[134] From April through September 2014, AH-64Es in combat maintained an 88 percent readiness rate.[135] The unit's deployment ended in November 2014, with the AH-64E accumulating 11,000 flight hours, each helicopter averaging 66 hours per month. The AH-64E flies 20 mph (32 km/h) faster than the AH-64D, cutting response time by 57 percent, and has better fuel efficiency, increasing time on station from 2.5–3 hours to 3–3.5 hours; Taliban forces were reportedly surprised by the AH-64E attacking sooner and for longer periods. AH-64Es also worked with medium and large unmanned aerial vehicles (UAVs) to find targets and maintain positive ID, conducting 60 percent of the unit's direct-fire engagements in conjunction with UAVs; Guardian pilots often controlled UAVs and accessed their video feeds to use their greater altitudes and endurance to see the battlespace from standoff ranges.[136][137][138]

In 2014, the Army began implementing a plan to move all Apaches from the Army Reserve and National Guard to the active Army to serve as scout helicopters to replace the OH-58 Kiowa. Using the AH-64 to scout would be less expensive than Kiowa upgrades or purchasing a new scout helicopter. AH-64Es can control UAVs like the MQ-1C Grey Eagle to perform aerial scouting missions; a 2010 study found the teaming of Apaches and UAVs was the most cost-effective alternative to a new helicopter and would meet 80 percent of reconnaissance requirements, compared to 20 percent with existing OH-58s and 50 percent with upgraded OH-58s. National Guard units, who would lose their attack helicopters, criticized the proposal.[139][140] In March 2015, the first heavy attack reconnaissance unit was formed with 24 Apaches and 12 Shadow UAVs.[141]

In July 2014, the Pentagon announced that Apaches had been dispatched to Baghdad to protect embassy personnel from Islamic State militant attacks. On 4 October 2014, Apaches began performing missions in Operation Inherent Resolve against Islamic State ground forces.[142] In October 2014, U.S. Army AH-64s and Air Force fighters participated in four air strikes on Islamic State units northeast of Fallujah.[citation needed] In June 2016, Apaches were used in support of the Iraqi Army's Mosul offensive[143] and provided support during the Battle of Mosul, sometimes flying night missions supporting Iraqi operations.[144] In December 2019, two Apaches provided overwatch for U.S. Marines to secure the U.S. embassy in Baghdad, Iraq after armed militants, supported by Iran, attempted to storm the facility.[145][146]

In March 2024, two Apache crashes within two days increased scrutiny and made national news.[147]

Israel

[edit]
IAF AH-64D "Saraph"

The Israeli Air Force (IAF) first received AH-64As in 1990,[148] for a fleet of 42 by 2000.[149] The IAF's choice to buy Apaches over upgrading its AH-1 Cobra attack helicopters was controversial.[150] In 2000, Israel was interested in acquiring up to 48 AH-64Ds, but U.S. reluctance to share the source code complicated the prospect.[149] In April 2005, Boeing delivered the IAF's first AH-64D.[151] In 2001, the U.S. government was allegedly investigating misuse of the Apache and other U.S.-supplied military equipment against Palestinians.[152] In 2009, the sale of six AH-64Ds was reportedly blocked by the Obama Administration, pending interagency review, over concerns they may pose a threat to civilian Palestinians in Gaza.[153][154] In IAF service, the AH-64A was named Peten (Hebrew: פתן, for Cobra[N 1]), while the AH-64D was named Saraph[148] (Hebrew: שרף, for venomous/fiery winged serpent).[156]

Israeli AH-64D

During the 1990s, Israeli AH-64As frequently attacked Hezbollah outposts in Lebanon.[157][158][159] On 13 April 1996, during Operation Grapes of Wrath, an Apache fired two Hellfire missiles at an ambulance in Lebanon, killing six civilians.[160] During the al-Aqsa Intifada in the 2000s, AH-64s were used to kill senior Hamas figures, such as Ahmed Yassin, Abdel Aziz al-Rantisi, and Adnan al-Ghoul.[161][162] Human Rights Watch documented instances of IAF Apaches attacking civilian homes during the 2002 Jenin operation, killing one civilian.[163] Consequently, HRW urged the US government to seek written assurances from Israel that Apaches would not be used to violate humanitarian law in the future.[163]

In 2004, Israeli AH-64s[164] carried out the assassination of Ahmed Yassin and also killed 7 bystanders.[164] Ahmed Yassin was the spiritual leader of Hamas; given that he was also blind, paraplegic and in a wheelchair, Palestinians saw the killing as "a cowardly execution of a frail old man in a wheelchair who did not attempt to hide".[165] The attack also killed 7 bystanders, and was internationally condemned.[166]

IAF Apaches played a prominent role in the 2006 Lebanon War, launching strikes into Lebanon targeting Hezbollah forces.[167][168] IAF Apaches also attacked civilian targets, killing many, including women and children.[169] During this war, two AH-64As collided, killing one pilot and critically wounding three.[170] In another incident in the conflict, an IAF AH-64D crashed due to a main rotor malfunction, killing the two crew.[171] In late 2007, the IAF put further purchases and deliveries of AH-64Ds on hold while its performance envelope was investigated.[156] Israeli officials praised the Apache for its role in Operation Cast Lead in 2008, against Hamas in Gaza.[172] IAF Apaches have often patrolled the skies over Gaza; strikes against insurgents by these helicopters has become a frequent occurrence.[173][174][175]

In the 2010s, the IAF pursued upgrades to its AH-64A fleet as new AH-64D orders had been blocked.[176][177] In June 2010, Israel decided not to upgrade all AH-64As to AH-64Ds due to funding constraints and lack of U.S. cooperation.[176][178] In December 2010, the IAF was examining the adoption of a new missile system as a cheaper and lightweight complement to the Hellfire missile, either the American Hydra 70 or the Canadian CRV7.[179] By 2013, IAF AH-64As were receiving a comprehensive upgrade of their avionics and electrical systems.[180] The AH-64As are being upgraded to the AH-64Ai configuration, which is near the AH-64D standard.[176] IAF Apaches can carry Spike anti-tank missiles instead of the Hellfire.[176][181] The latest AH-64D-I integrates Israeli systems such as Elta communications suite, Elbit mission management system, Rafael Combat Net system and Elisra self-protection suite.[182]

IAF AH-64s occasionally saw use in the air-to-air role. The first operational air-to-air kill took place on 24 May 2001, when an IAF shot down a Lebanese civilian Cessna 152 aircraft. Israeli and Lebanese officials presented differing versions: Lebanon said Israel first intercepted the aircraft over Lebanese airspace and its pilot, flying without his instructor, mistakenly entered Israeli airspace, while Israel says the aircraft was already in Israeli airspace when it was intercepted and repeatedly refused to answer or comply with air traffic control (ATC) warnings.[183][184] The second air-to-air kill occurred on 10 February 2018, after an Iranian UAV entered Israeli airspace from Syria, an AH-64 destroyed it with a missile.[185]

United Kingdom

[edit]
UK Army Air Corps Westland WAH-64D Apache Longbow displays at a UK airshow
British WAH-64D

The UK previously operated a modified version of the AH-64D Block I Apache Longbow; initially called the Westland WAH-64 Apache, it is designated the Apache AH1 by the British Army. Westland built 67 WAH-64 Apaches under license from Boeing,[186] following a competition between the Eurocopter Tiger and the Apache for the British Army's new Attack Helicopter in 1995.[187][188] Important deviations made by AgustaWestland from the U.S. Apache variants include changing to more powerful Rolls-Royce engines,[189] and the addition of a folding blade assembly for use on naval ships.[190]

On 11 July 2016, the Ministry of Defence confirmed a U.S. Foreign Military Sale (FMS) worth $2.3 billion (~$2.86 billion in 2023) for 50 AH-64Es to be built in Mesa, Arizona. Leonardo Helicopters in the UK will maintain the current fleet of Apaches until 2023–2024, with a long-term plan for Leonardo and other UK companies to "do most of the work" on the new fleet.[191] The deal included an initial support contract for maintenance, spare parts, and training simulators; components from the older WAH-64s "will be reused and incorporated into the new helicopters where possible." The type entered service with the British Army in 2022.[192] Approval for the re-manufacture of fifty of the UK's WAH-64 Mk 1 fleet to AH-64E Apache Guardian standard was given by the Defense Security Cooperation Agency in August 2015.[193] They utilize the General Electric T700 engine rather than the Turbomeca RTM322 of the WAH-64; the first off-the-shelf purchase of a GE engine by the Ministry of Defence.[194] The first two AH-64Es were delivered to the British Army on 26 November 2020.[195] The older AH1 (WAH-64) were retired by 2024 in favour of the AH-64E models.[196]

Netherlands

[edit]
Royal Netherlands Air Force AH-64D at the Farnborough Airshow, 2006
Rear view of Dutch AH-64D

The Dutch government initially showed an interest in acquiring Apache helicopters in the late 1980s, when it stated that it may purchase as many as 52.[197] A competition held in 1994 against the Eurocopter Tiger and the Bell AH-1 SuperCobra led to the Royal Netherlands Air Force ordering 30 AH-64D Apaches in 1995.[198][199][200] Deliveries began in 1998[201] and ended in 2002.[202][203] The RNLAF Apaches are equipped with the Apache Modular Aircraft Survivability Equipment (AMASE) self-protection system to counter infrared (IR) missile threats.[204][205]

The RNLAF Apaches' first deployment was in 2001 to Djibouti, Africa.[206] They were also deployed alongside U.S. AH-64s in support of NATO peacekeeping forces in Bosnia and Herzegovina.[207] In 2004, six Dutch AH-64s were deployed as part of the Netherlands contribution to the Multinational force in Iraq to support the Dutch ground forces.[208] The Apaches performed close combat support and display of force missions, along with providing reconnaissance information to ground forces. In February 2006, the Netherlands' contribution to NATO forces in Afghanistan was increased from 600 to 1,400 troops and 6 AH-64s were sent in support.[209]

A Royal Netherlands Air Force AH-64D Apache from the Apache Solo Display Team

Shortly after Apaches were deployed to Hamid Karzai International Airport, as part of the Dutch contribution to ISAF, on 10 April 2004, a pair of Dutch Apaches came under light gunfire close to Kabul.[210] On 17 December 2007, an RNLAF Apache flew into power lines during a night flying exercise in the Netherlands, forcing an emergency landing and causing a lengthy blackout in the region.[211] On 17 March 2015, a RNLAF Apache crashed during a training mission in Mali. Both pilots died. The Ministry of Defence opened an investigation into the cause of the crash.[212]

In February 2018, the Netherlands decided to upgrade all their AH-64Ds to the latest AH-64E standard via a FMS contract with the US, along with 17 APG-78 fire control radar units.[213] In November 2021, the process to upgrade AH-64Ds began and RNLAF is to receive the upgraded AH-64Es between 2023 and 2025.[214]

Saudi Arabia

[edit]

Following the 1991 Gulf War, during which many U.S. Apaches operated from bases within Saudi territory,[215][216] Saudi Arabia purchased twelve AH-64As for the Royal Saudi Land Force.[217][218] It has been speculated that the Saudi purchase motivated Israel to also procure Apaches.[219] In August 2006, Saudi Arabia began negotiations for Apache upgrades worth up to $400M (~$582 million in 2023), possibly remanufacturing their AH-64As to the AH-64D configuration.[220] In September 2008, the U.S. Government approved a Saudi Arabian request to buy 12 AH-64Ds.[221] In October 2010, Saudi Arabia requested a further 70 AH-64Ds as part of a possible massive arms deal.[222][223]

Royal Saudi Land Forces AH-64A, 2005

In November 2009, the Royal Saudi Land Force, as part of a military effort against insurgent border intrusions, launched Operation Scorched Earth; this involved Apaches launching air strikes against Houthi rebels operating inside neighboring Yemen.[224][225] In January 2010 the rebels claimed to have shot down an Apache; this was denied by the Saudi military.[226] In late January 2010, the leader of the Shiite rebels announced their withdrawal from Saudi territory, this announcement followed a key battle on 12 January when Saudi forces reportedly took control of the border village of Al Jabiri.[227]

As an escalation of the Yemeni Civil War, starting on 26 March 2015, Saudi Arabia, the United Arab Emirates, and several other regional allies started a military operation in Yemen. Both the Saudi Army Aviation and the United Arab Emirates Air Force used their AH-64s in combat against an alliance between elements of the Yemeni Army loyal to the former president Saleh and the Houthis. The Apaches were mostly involved in border patrol and strikes in Northwestern Yemen. Over the years, several Saudi and an Emirati Apaches were lost to incidents and enemy fire, although exact numbers have not been independently confirmed.[228] On 17 March 2017, an Apache reportedly attacked a Somali refugee boat, killing 42 refugees.[229] Saudi Arabia denied involvement, though it and the United Arab Emirates are the only militaries using Apaches during the conflict.[230][231]

United Arab Emirates

[edit]
An UAEAF Apache conducts deck landing qualifications aboard the USS Fort McHenry.

The United Arab Emirates purchased 30 AH-64As between 1991 and 1994,[232] and began upgrading to AH-64D specification in 2008.[233] In December 2016, the U.S. State Department approved a proposed sale of another 37 AH-64Es and Congress was notified; this consisted of 28 re-manufactured and nine new-build helicopters.[234]

A UAE AH-64 was reportedly lost on 17 October 2017;[235] a replacement was approved by the US in 2019.[236]

Egypt

[edit]

In 1995, the Egyptian Air Force placed an order for 36 AH-64As.[237] These Apaches were delivered with the same avionics as the U.S. fleet at that time, except for indigenous radio equipment.[238] In 2000, Boeing announced an order to remanufacture Egypt's Apache fleet to the AH-64D configuration,[239] except for Longbow radar, which had been excluded by the U.S. government.[240] In 2009, Egypt requested a further 12 AH-64D Block IIs with Longbow radars through a FMS.[241][242]

In August 2012, the Egyptian Armed Forces undertook a large-scale military operation to regain control of the Sinai Peninsula from armed militants. Air cover throughout the operation was provided by the Egyptian Air Force's Apaches, which reportedly destroyed three vehicles and killed at least 20 militants.[243] Up to five Egyptian Apaches were temporarily stationed in the Sinai following an agreement between Egypt and Israel.[244] In September 2015, an Egyptian Apache attacked a group of foreign tourists in the Western Desert, killing 12 people and injuring 10. The AH-64s fired at the civilians with rockets and 30mm machine guns for several hours, even though survivors said they waved the white flag.[245] The Egyptian Interior Ministry stated that the group, whom were mistaken for militants, were in a restricted area.[246] The tourists were reportedly accompanied by Egyptian police, and their vehicles were marked with logos of the tourist company.[245]

In November 2018, the U.S. Department of State approved the sale of ten AH-64Es and associated equipment to Egypt, valued at US$1 billion, pending the sale clearing Congress.[247][248]

The Apache entered service with Egyptian Armed Services, and in the 2020s was being further upgraded.[249]

India

[edit]

Indian Air Force

[edit]
An IAF AH-64E in 2019

In 2008, the Indian Air Force (IAF) released a tender for 22 attack helicopters; there were six contending submissions: Sikorsky's UH-60 Black Hawk, the AH-64D, Bell's AH-1 Super Cobra, Eurocopter's Tiger, Mil's Mi-28 and AgustaWestland's A129 Mangusta.[250] In October 2008, Boeing and Bell withdrew.[251] In 2009, the competition was restarted.[252][253] In December 2010, India requested the sale of 22 Apaches and associated equipment.[254] On 5 October 2012, IAF Chief NAK Browne confirmed the Apache's selection.[255] The IAF sought control of the 22 Apaches for air combat missions, while the Army Aviation Corps argued that they would be better used in army operations.[256] In April 2013, the Indian Ministry of Defence decided that the 22 AH-64s would go to the IAF.[257] India ordered the 22 AH-64Es in 2015.[258]

On 11 May 2019, the IAF received its first AH-64E in a ceremony at Boeing's Mesa, Arizona facility.[259] On 3 September 2019, 8 AH-64Es were inducted into the IAF's 125 Helicopter Squadron at Pathankot Air Base, Punjab.[260][261]

Indian Army

[edit]

On 12 June 2018, the U.S. Department of State approved a possible Foreign Military Sales (FMS) to India for six more AH-64Es and associated equipment in an estimated $930 million deal. The U.S. Defense Security Cooperation Agency notified Congress for approval.[262][260] In February 2020, another six for the Indian Army were ordered, including weapons, equipment, and training; deliveries are planned to begin in 2023.[263] These attack helicopters are often interlinked with squadrons of indigenous HAL Prachand attack helicopters.

On 1 January 2024, senior Army officials told India Today that the Indian Army Aviation Corps is expected to induct the first batch of Apache helicopters in February–March of this year. This is to enable the army to protect its tanks on the battlefield when the Indian Air Force is unavailable. They will be deployed to Jodhpur, near the India–Pakistan border, enhancing the security of the area against Pakistani tanks.[264][265] On 15 March 2024, Army Aviation Corps raised an 451 Army Aviation squadron at Jodhpur which will operate Apache.[266][267] The induction of first batch of three Apache was scheduled in May 2024 and the rest by July 2024.[268] As of August 2024, no Apaches were delivered to the Army.[269]

Citing delays due to supply chain issues, as of September 2024, the first batch of three Apache helicopters are to delivered by the following December–January followed by the next 3 within another few months.[270][271]

Other users

[edit]
Two Republic of China Army AH-64Es deploying flares, 2020
Kuwait Land Force AH-64 on a live fire exercise

Greece received 20 AH-64As by 1995; another 12 AH-64Ds were ordered in September 2003.[237][272]

Singapore purchased 20 AH-64Ds in two batches between 1999 and 2001.[273] In October 2010, training was suspended following the forced crash-landing of an Apache.[274]

In 2005, Kuwait purchased 16 AH-64Ds.[275]

On 26 August 2013, Indonesia and the U.S. finalized a contract for eight AH-64E Apaches worth $500 million (~$645 million in 2023).[276] The first was displayed on 5 October 2017 as part of a military exercise in Indonesia, to mark the 72nd anniversary of its armed forces.[277] The first batch of AH-64s for the Indonesian Army arrived in Indonesia on 18 December 2017.[278][279]

Indonesian Army Aviation AH-64E in 2018

Japan ordered 50 AH-64Ds,[237] which were built under license by Fuji Heavy Industries, designated "AH-64DJP". The first helicopter was delivered to the JGSDF in early 2006.[280] The order was halted after 13 aircraft were delivered due to cost.[281] In 2017, it was announced that the targeting systems of the 13 aircraft would be upgraded.[282] One was destroyed in a crash in February 2018 with the deaths of both crew.[283][284][285]

In June 2011, Taiwan (Republic of China) agreed to the purchase of 30 AH-64Es with weapons and associated equipment.[286][287] On 5 November 2013, Taiwan received the first six AH-64s.[288] On 25 April 2014, a Taiwanese AH-64E crashed into a three-story building during a training flight in bad weather conditions, the first AH-64E airframe loss.[289][290] An investigation ruled out mechanical failure and concluded that the pilots had rapidly descended through clouds at low altitude without checking flight instruments to maintain adequate height; the Army expanded simulator training in response.[291] In October 2014, Taiwan's fifth and final batch of AH-64Es was delivered.[292]

In 2009, South Korea showed interest in the Apache,[293][294] potentially related to plans to withdraw many U.S. Apaches from the country.[295] On 21 September 2012, the U.S. Congress was notified of the possible purchase of 36 AH-64E, along with associated equipment and armament.[296] It competed against the Bell AH-1Z Viper and the TAI/AgustaWestland T-129;[297] in April 2013, South Korea announced plans to buy 36 AH-64Es.[298] The first four AH-64Es were delivered in May 2016,[299] and all 36 were deployed by January 2017.[300]

Future and possible users

[edit]
Two US Army Apaches during Exercise Talisman Sabre 2019, in Queensland, Australia

Iraq requested the sale of 24 AH-64s in April 2013;[301] In January 2014, a sale, including the helicopters, associated parts, maintenance, and training, was cleared by the U.S. Congress.[302][303] However, the proposal was not accepted by the Iraqi government and expired in August 2014.[304]

In July 2012, Qatar requested the sale of 24 AH-64Es with associated equipment and support.[305] The sale was approved on 27 March 2014.[306] In March 2019, Qatar received the first of 24 AH-64Es ordered.[307]

In July 2016, the UK placed an order for 50 AH-64Es through the U.S. FMS program instead of upgrading their Westland-built WAH-64s.[308]

In July 2019, Australia issued a request for information for Project Land 4503 to replace the Army's Eurocopter Tiger ARH helicopters.[309][310] On 15 January 2021, the Australian Minister for Defence Linda Reynolds announced that the AH-64E had been selected to replace the Tiger ARH.[311][312] A fleet of 29 AH-64Es will be acquired with a planned initial operational capability of 12 helicopters in 2026 and full operational capability in 2028.[312][313][314]

In October 2019, the Bangladesh Air Force (BAF) was offered two types of attack helicopters and selected the AH-64, pending government approval.[315] However, due to the Apache's high costs, the BAF choose the competing Russian Mi-28NE Night Hunter.[316]

In November 2019, the U.S. State Department approved a FMS to Morocco of 24 AH-64Es (with an option for a further 12), this allows Morocco to negotiate an order.[317]

On 30 April 2020, the U.S. Defense Security Cooperation Agency announced it had received U.S. State Department approval and notified Congress of a possible sale to the Philippines of either six AH-1Z attack helicopters and related equipment for an estimated cost of $450 million or six AH-64Es and related equipment for an estimated cost of $1.5 billion.[318][319]

On 21 April 2022, Polish Ministry of National Defence shortlisted two models in competition for the "Kruk" (Raven) Program aimed at modernizing the Polish Land Forces' fleet of attack helicopters, with the competitors being the AH-64E and Bell's AH-1Z Viper.[320] On 8 September 2022, Polish Minister of Defence Mariusz Błaszczak announced that the AH-64E has won and set out to procure 96 helicopters to form six squadrons.[321][322] The contract includes a logistics package and a training package along with a stock of ammunition and spare parts.[323]

Variants

[edit]

AH-64A

[edit]
Israeli Air Force AH-64A Peten

The AH-64A is the original production attack helicopter. The crew sit in tandem in an armored compartment. It is powered by two GE T700 turboshaft engines. The A-model was equipped with the −701 engine version until 1990 when the engines were switched to the more powerful −701C version.[324]

U.S. Army AH-64As are being converted to AH-64Ds. The service's last AH-64A was taken out of service in July 2012 before conversion at Boeing's facility in Mesa, Arizona.[325] On 25 September 2012, Boeing received a $136.8M contract to remanufacture the last 16 AH-64As into the AH-64D Block II version and this was planned to be completed by December 2013.[326][needs update]

AH-64B

[edit]

In 1991, after Operation Desert Storm, the AH-64B was a proposed upgrade to 254 AH-64As. The upgrade would have included new rotor blades, a Global Positioning System (GPS), improved navigation systems and new radios. U.S. Congress approved $82M to begin the Apache B upgrade. The B program was canceled in 1992.[327] The radio, navigation, and GPS modifications were later installed on most AH-64As via other upgrades.

AH-64C

[edit]

Additional funding from Congress in late 1991 resulted in a program to upgrade AH-64As to an AH-64B+ version. More funding changed the plan to upgrade to AH-64C, which would include all of the changes to be included in the AH-64D except for mast-mounted radar and newer −700C engine versions. However, the C designation was dropped after 1993.[328] With AH-64As receiving the newer engine from 1990, the only difference between the AH-64C and the AH-64D was the radar, which could be moved from one aircraft to another; thus, the decision was made to simply designate both versions as AH-64D.[328]

AH-64D

[edit]
An AH-64D tests the AGM-179 JAGM at the Yuma Proving Ground

The AH-64D Apache Longbow is equipped with a glass cockpit and advanced sensors, the most noticeable of which being the AN/APG-78 Longbow millimeter-wave fire-control radar (FCR) target acquisition system and the Radar Frequency Interferometer (RFI), housed in a dome located above the main rotor.[329][330] The radome's raised position enables target detection while the helicopter is behind obstacles (e.g. terrain, trees or buildings). The AN/APG-78 is capable of simultaneously tracking up to 128 targets and engaging up to 16 at once; an attack can be initiated within 30 seconds.[331][332] A radio modem integrated with the sensor suite allows data to be shared with ground units and other Apaches, allowing them to fire on targets detected by a single helicopter.[333]

The aircraft is powered by a pair of uprated T700-GE-701C engines. The forward fuselage was expanded to accommodate new systems to improve survivability, navigation, and 'tactical internet' communications capabilities. In February 2003, the first Block II Apache was delivered to the U.S. Army, featuring digital communications upgrades. The Japanese Apache AH-64DJP variant is based on the AH-64D;[148] it can be equipped with the AIM-92 Stinger air-to-air missiles for self-defense.[334][335]

AH-64E

[edit]
AH-64E undergoes landing qualification on the amphibious assault ship USS Peleliu
AH-64E Apache Guardian

Formerly known as AH-64D Block III, in 2012, it was redesignated as AH-64E Guardian.[336][337] It has improved digital connectivity, the Joint Tactical Information Distribution System, more powerful T700-GE-701D engines with upgraded face gear transmission to handle more power,[338] capability to control unmanned aerial vehicles (UAVs), full IFR capability, and improved landing gear.[339][340] New composite rotor blades, which completed testing in 2004, increase cruise speed, climb rate, and payload capacity.[341] Deliveries began in November 2011.[342] Full-rate production was approved on 24 October 2012,[citation needed] 634 AH-64Ds will be upgraded into AH-64Es.[343]

Changes in production lots 4 through 6 include a cognitive decision aiding system and new self-diagnostic abilities. The updated Longbow radar has an oversea capacity, potentially enabling naval strikes; an AESA radar is under consideration.[344] It will have a L-3 Communications MUMT-X datalink in place of two older counterparts, communicating on C, D, L, and Ku frequency bands to transmit and receive data and video with all Army UAVs.[345] Lots 5 and 6 will have Link 16 data links.[346] The AH-64E is to be fit for maritime use.[347] The U.S. Army expressed interest in extended-range fuel tanks for greater endurance.[137] As of April 2020, 500 AH-64Es have been delivered.[348]

Work on a further upgraded AH-64E, version 6.5 was initiated by the U.S. Army in 2021, and first flew in 2023.[349] The AH-64E is reported to have had problems with its electrical generation systems causing increased scrutiny.[350]

AH-64F

[edit]

In 2014, Boeing conceptualized an Apache upgrade prior to the introduction of the U.S. Army's anticipated attack version of the Future Vertical Lift (FVL) aircraft, forecast to replace the Apache by 2040. The conceptual AH-64F would have greater speed via a new 3,000 shp turboshaft engine from the Improved Turbine Engine Program, retractable landing gear, stub wings to offload lift from the main rotor during cruise, and a tail rotor that can articulate 90 degrees to provide forward thrust.[351] In October 2016, the Army revealed they would not pursue another Apache upgrade to focus on funding FVL; the Army will continue buying the Apache through the 2020s until Boeing's production line ends in 2026, then FVL is slated to come online in 2030.[352]

Piasecki Speed Apache

[edit]

In the late 1990s, Piasecki conceived a proposal for an Apache with a tail–mounted ducted pusher rotor to enhance speed. However, the Speed Apache was not proceeded with.[353] This appears to be similar to the Piasecki X-49 SpeedHawk.

Compound Apache

[edit]

In October 2018, Boeing began testing the AH-64E Block 2 Compound, a compound helicopter design which added a larger fixed wing and a pusher propeller to the Apache airframe to provide additional lift and thrust, respectively. In addition, the engine exhaust was redirected downwards.[354] Collectively, the modifications were anticipated to improve speed to 185 kn (343 km/h; 213 mph), range to 460 nmi (850 km; 530 mi), payload to 5,900 lb (2,700 kg), and fuel economy. A 30% scale model completed wind tunnel testing in January 2019. The Compound Apache has been pitched as an interim replacement for the Apache before its replacement under the Future Vertical Lift program.[355]

Sea Apache

[edit]
A U.S. Army AH-64A Apache aboard USS Nassau during Joint Shipboard Weapons and Ordnance training

During the 1980s naval versions of the AH-64A for the United States Marine Corps and Navy were examined.[356][357] Multiple concepts were studied with altered landing gear arrangements, improved avionics and weapons.[356] The USMC conducted a two-week evaluation of the Apache in September 1981, including shipboard operation tests. Funding for a naval version was not provided; the USMC continued to use the AH-1.[358]

The Canadian Forces Maritime Command also examined naval Apaches.[359] In 2004, British Army AgustaWestland Apaches were deployed upon the Royal Navy's HMS Ocean, a Landing Platform Helicopter, for suitability testing; there was U.S. interest in the trials.[190] During the 2011 military intervention in Libya, the British Army extensively used Apaches from HMS Ocean.[360] In 2013, US AH-64Ds were tested on several U.S. Navy ships.[361]

Export Apaches

[edit]

Several models have been derived from the AH-64A, AH-64D and AH-64E for export. The British-built AgustaWestland Apache (assembled from kits purchased from Boeing) is based on the AH-64D Block I with several different systems, including more powerful engines, folding rotor blades, and other modifications for operation from Royal Navy vessels.

Block modification

[edit]

While a major change in design or role will cause the type designator suffix to change, for example from AH-64D to AH-64E, the helicopters are also subject to block modification. Block modification is the combining of equipment changes into blocks of modification work orders, the modifications in the block (sometimes called a block package) are all done to the helicopter at the same time.[362]

Operators

[edit]
Map with AH-64 Apache operators in blue
A Hellenic Army AH-64
An AH-64E Apache of the Indian Air Force
A Fuji Heavy Industries license built Apache for the Japanese GSDF
A U.S. Army ski equipped AH-64 training Fort Wainwright, Alaska

The AH-64 has had some modest success on the export market. It has been popular in the middle east, where its role the Gulf War established a bit of reputation. Its main user continues to be the U.S. Army, and the largest user in Europe will be Poland.

 Australia
 Egypt
 Greece
 India
Indonesian Army AH-64E Apache helicopter
 Indonesia
 Israel
 Japan
  • Japan Ground Self-Defense Force – 12 AH-64Ds[364] In December 2022, the Japanese government decided to replace 12 AH-64D, 47 AH-1S, 33 OH-1, and 26 U-125A with unmanned aerial vehicles. Japan plans to increase its defense budget from 1.24% of GDP in fiscal 2021 to around 2.0% within 10 years, and has decided to retire these helicopters and aircraft as part of an effort to spend its defense budget efficiently.[368]
 Kuwait
 Morocco
 Netherlands
 Poland
 Qatar
 Saudi Arabia
 Singapore
 South Korea
 Taiwan (Republic of China)
 United Arab Emirates
 United Kingdom
 United States

Specifications (AH-64A/D)

[edit]
M789 HEDP 30 mm rounds being loaded into an AH-64D

Data from Jane's All the World's Aircraft 2000–2001,[53] Jane's All the World's Aircraft 2010–2011,[72] Apache AH-64 Boeing (McDonnell Douglas) 1976–2005[376]

General characteristics

  • Crew: 2 (pilot, and co-pilot/gunner)
  • Length: 58 ft 2 in (17.73 m)
  • Fuselage length: 49 ft 5 in (15.06 m)
  • Height: 12 ft 8 in (3.87 m)
  • Empty weight: 11,387 lb (5,165 kg)
  • Gross weight: 17,650 lb (8,006 kg)
  • Max takeoff weight: 23,000 lb (10,433 kg)
  • Powerplant: 2 × General Electric T700-GE-701 turboshaft engines, 1,690 shp (1,260 kW) each (upgraded to 1,890 shp (1,409 kW) T700-GE-701C for AH-64A/D from 1990)
  • Main rotor diameter: 48 ft 0 in (14.63 m)
  • Main rotor area: 1,908.5 sq ft (177.31 m2) 4-bladed main-rotor and 4-bladed tail-rotor in non-orthogonal alignment
  • Blade section: root: HH-02; tip: NACA 64A006[377]

Performance

  • Maximum speed: 158 kn (182 mph, 293 km/h)
  • Cruise speed: 143 kn (165 mph, 265 km/h)
  • Never exceed speed: 197 kn (227 mph, 365 km/h)
  • Range: 257 nmi (296 mi, 476 km) with Longbow radar mast
  • Combat range: 260 nmi (300 mi, 480 km)
  • Ferry range: 1,024 nmi (1,178 mi, 1,896 km)
  • Service ceiling: 20,000 ft (6,100 m)
  • Disk loading: 9.8 lb/sq ft (48 kg/m2)
  • Power/mass: 0.18 hp/lb (0.30 kW/kg)

Armament

Avionics

Notable appearances in media

[edit]

See also

[edit]

Related development

Aircraft of comparable role, configuration, and era

Related lists

References

[edit]

Notes

[edit]
  1. ^ Israel had already used "Tzefa" (צפע), Hebrew for Viper to name its Bell AH-1 Cobras.[155] Donald 2004 states Peten translates to "Viper".[148]

Citations

[edit]
  1. ^ Balznet, Belinda (22 March 2024). "Apache Helicopter Celebrates 40 Years". U.S. Army. Retrieved 30 June 2024.
  2. ^ Haynes, Mary L. and Cheryl Morai Young, ed. "Department of the Army Historical Summary, FY 1987, Chapter 5: Modernizing and Equipping the Army" Archived 20 July 2016 at the Wayback Machine. Center of Military History, United States Army, 1995.
  3. ^ "Boeing Marks 25th Anniversary of Apache First Flight Sept. 30". Boeing. 2 October 2000.
  4. ^ "Army Cancels Helicopter Contract". Victoria Advocate. 10 August 1972.
  5. ^ "Army Decides To Scrap Cheyenne Helicopter Gunship". Boca Raton News. 3 September 1972.
  6. ^ Bishop 2005, pp. 5–6.
  7. ^ OAVCSA 1973, p. 10.
  8. ^ "Army Seeking Bids on New Helicopter". The New York Times. 16 November 1972.
  9. ^ "New Army Tactic". Reading Eagle. 11 September 1973.
  10. ^ Bishop 2005, p. 7.
  11. ^ a b Richardson and Peacock 1992, p. 8.
  12. ^ Donald 2004, p. 114.
  13. ^ Bishop 2005, p. 8.
  14. ^ "AGM-114 Hellfire missile". Boeing. Archived from the original on 14 September 2011. Retrieved 30 July 2011.
  15. ^ a b Bishop 2005, pp. 8–9.
  16. ^ a b Donald 2004, p. 119.
  17. ^ Wilson, Cynthia; Dale Singer (13 January 2004). "McDonnell-Boeing Merger". St. Louis Post-Dispatch.[dead link]
  18. ^ Babcock, Charles R. (20 February 1991). "Temperamental Helicopter Joins Battle". The Washington Post. Retrieved 14 October 2021.
  19. ^ "Helicopter Contract Awarded". Prescott Courier. 17 August 1988.
  20. ^ Donald 2004, pp. 150–153.
  21. ^ "Great Planes: Apache Helicopter" Archived 17 January 2013 at the Wayback Machine. Military Channel
  22. ^ Foote, Sheila (4 April 1995). "DOD Halts Apache Longbow Tests Early". Defense Daily. Archived from the original on 20 July 2012.
  23. ^ Donald 2004, pp. 156–158.
  24. ^ Foote, Sheila (16 October 1995). "DoD Approves Production of Longbow Apache Attack Helicopter". Defense Daily. Archived from the original on 18 July 2012.
  25. ^ Caires, Greg (19 August 1996). "Army Inks $1.9 Billion AH-64D Apache Deal". Defense Daily. Archived from the original on 23 July 2012.
  26. ^ Eden, Paul, ed. "Boeing AH-64 Apache". Encyclopedia of Modern Military Aircraft. Amber Books, 2004. ISBN 1-904687-84-9.
  27. ^ "Ensure Israel arms curbs, say MPs". BBC News. 30 March 2010.
  28. ^ "KAI Signs Cooperation Agreement With Boeing, To Produce Apache Fuselages". Defense Daily. 20 February 2003. Archived from the original on 4 September 2015.
  29. ^ "F-15/Apache Fuselage Monopolization Program". Korea Aerospace Industries. Archived from the original on 9 August 2017. Retrieved 21 January 2012.
  30. ^ Dunbar, Lisa (2009). "Boeing celebrates milestone: 100th AH-64D Apache fuselage delivery". Boeing. Archived from the original on 20 February 2012.
  31. ^ "Arbitrator will rule on AH-64 fuselage production dispute". FlightGlobal. 8 April 1998.
  32. ^ "AH-64D Apache Longbow". Deagel.com. Retrieved 28 October 2010.
  33. ^ "Boeing Remanufactures AH-64A Apaches to AH-64D Block II". defenseindustrydaily.com. 21 July 2011.
  34. ^ Hoyle, Craig (15 October 2008). "Greece urged to commit to Apache upgrade, as air force eyes new utility model". FlightGlobal.
  35. ^ Garrett Reim (17 May 2019). "Boeing suggests propulsor, winged AH-64 Apache variant for US Army". FlightGlobal.
  36. ^ US Army TM 1-1520-251-10 Operator's Manual for Helicopter, Attack, AH-64D Longbow Apache, dated 29 March 2002 pp. 2-31 to 2-36.
  37. ^ "Model T700-701C" Archived 17 December 2013 at the Wayback Machine. GE Aviation
  38. ^ "Model T700-701D" Archived 17 December 2013 at the Wayback Machine. GE Aviation
  39. ^ "RTM 322". Turbomeca
  40. ^ a b c d Hudson, Joel B. (2 April 1997). "Attack Helicopter Operations" (PDF). Department of the Army. p. 166. Archived (PDF) from the original on 9 October 2022.
  41. ^ Donald 2004, pp. 110–11.
  42. ^ "How Apache Helicopters Work". HowStuffWorks. 2 April 2002. Retrieved 10 October 2013.
  43. ^ Donald 2004, pp. 111–112.
  44. ^ "GE Says T700 Operating Well in Gulf". Defense Daily. 20 December 1990. Archived from the original on 19 July 2012.
  45. ^ "T700-GE-701D Engine Awarded U.S. Army Qualification". GE Aviation. 4 November 2004. Archived from the original on 21 November 2008.
  46. ^ Richardson and Peacock 1992, pp. 16–17.
  47. ^ "Boeing AH-64 Apache windshields, windows, canopy and blast barrier" (PDF). ppgaerospace.com. PPG Aerospace.
  48. ^ "The History of Helicopter Safety" (PDF). Archived from the original (PDF) on 18 April 2013.
  49. ^ "AH-64 Apache – Military Aircraft". fas.org. Retrieved 22 June 2016.
  50. ^ "Boeing AH-64D Longbow Apache Attack Helicopter". military-today.com. Archived from the original on 9 June 2016. Retrieved 22 June 2016.
  51. ^ Rash, Clarence E.; Martin, John S. (August 1988). The Impact of the U.S. Army's AH-64 Helmet Mounted Display on Future Aviation Helmet Design (Report). Army Aeromedical Research Lab Fort Rucker. Archived from the original on 27 February 2012. Retrieved 31 January 2010.
  52. ^ Casey, Curtis J. (5 August 2002). Rash, Clarence E.; Reese, Colin E. (eds.). "Emergence of Solid State Helmet-Mounted Displays in Military Applications". Helmet- and Head-Mounted Displays VII. 4711. SPIE: 28–32. Bibcode:2002SPIE.4711...28C. doi:10.1117/12.478896. S2CID 110336810.
  53. ^ a b c "Boeing AH-64 Apache". Jane's Information Group. 13 October 2000. Archived from the original on 25 February 2008. Retrieved 1 April 2010.
  54. ^ "Boeing To Develop Electric Gun Turret for the AH-64D". Boeing. 5 May 1999. Archived from the original on 1 July 2013.
  55. ^ "$262.4M in Arrowheads For Apaches". Defense Daily. 2 May 2005.
  56. ^ "PEO STRI AWSS LBA TESS". PEO STRI. Archived from the original on 20 March 2014. Retrieved 20 March 2014.
  57. ^ "ASP Motion Base for Stabilized Mounts" Archived 8 July 2013 at the Wayback Machine. Department of Defense Small Business Innovation Research. Retrieved June 2012.
  58. ^ a b Harris, Tom (2 April 2002). "How Apache Helicopters Work: Apache Sensors". howstuffworks.com. Retrieved 2 February 2010.
  59. ^ Richardson and Peacock 1992, pp. 26–31.
  60. ^ Apache Guardian set to deploy on May Archived 4 March 2016 at the Wayback Machine – Koreatimes.co.kr, 26 January 2016
  61. ^ Ground Fire Acquisition System Archived 28 October 2012 at the Wayback Machine – Armedforces-int.com, 26 October 2012.
  62. ^ "Lockheed tech lets U.S. Apache helicopter pilots aim in color". Reuters. 19 February 2014. Retrieved 9 February 2019 – via www.reuters.com.
  63. ^ Drew, James (7 January 2016). "Lockheed secures first order for Apache day sensor kits". FlightGlobal. Retrieved 9 February 2019.
  64. ^ "Army Configures Apaches for Sea Duty". Military.com. 13 October 2014. Retrieved 9 February 2019.
  65. ^ Donald 2004, pp. 124–127.
  66. ^ Hinton, Henry L.; Dunham, Raymond; Gilliam, Thomas W.; Grant, John L.; Ortiz, John M. (1 March 1992). Operation Desert Shield/Desert Storm: Observations on the Performance of the Army's Hellfire Missile (PDF) (ADA251799 ed.). GENERAL ACCOUNTING OFFICE WASHINGTON DC NATIONAL SECURITY AND INTERNATIONAL AFFAIRS DIV.
  67. ^ "US approves full new warhead production". New Zealand Herald. 25 August 2005.
  68. ^ Smith, Michael (22 June 2008). "Army 'vacuum' missile hits Taliban". The Times. London.[dead link]
  69. ^ a b "BAE secures US Army Apache as APKWS laser-guided rocket customer" FlightGlobal, 14 October 2015
  70. ^ a b c Donald 2004, pp. 134–135.
  71. ^ Richardson and Peacock 1992, pp. 40–41, 60.
  72. ^ a b "Boeing AH-64 Apache". Jane's All the World's Aircraft. Jane's Information Group, 2010. subscription article, 1 February 2010.[dead link]
  73. ^ "Helicopter rescue bid for Marine". BBC News. 17 January 2007.
  74. ^ Raytheon Sells Stingers for Apaches Abroad Archived 1 March 2014 at the Wayback Machine – DoDBuzz.com, 23 October 2013
  75. ^ Weapon, sensor upgrades coming for Apache fleet. FlightGlobal, 31 March 2015.
  76. ^ "Apache-UAV teaming combines 'best capabilities of man, machine'". Army.mil, 8 May 2014
  77. ^ "Boeing Apache demonstrates UAV Control". gizmag.com, 12 April 2006.
  78. ^ Boeing, Lockheed unveil competing UAV-killing concepts FlightGlobal, 14 October 2015
  79. ^ "Raytheon, US Army complete first ever helicopter-based firing of High Energy Laser" Archived 1 July 2017 at the Wayback Machine – Airrecognition.com, 26 June 2017
  80. ^ "MBDA fires Brimstone missile from Apache helicopter". UPI.com. 14 July 2016. Retrieved 14 March 2017.
  81. ^ "US Army to field Israeli-made long-range missile on helicopters". Defense News. 9 January 2020.
  82. ^ Richardson and Peacock 1992, pp. 14–15.
  83. ^ Apache news 2004, pp. 33–34. Boeing, 2004. Archived 30 June 2013 at the Wayback Machine
  84. ^ a b Richardson and Peacock 1992, pp. 47–48.
  85. ^ Bernsteein 2005, p. 6.
  86. ^ Donald 2004, p. 121.
  87. ^ Williams 2005, pp. 212–213.
  88. ^ Williams 2005, pp. 215–218.
  89. ^ Richardson and Peacock 1992, pp. 51–52.
  90. ^ Bishop 2005, pp. 16–17.
  91. ^ a b Bernstein 2005, p. 7.
  92. ^ a b Bishop 2005, pp. 17–18.
  93. ^ Donald 2004, pp. 144–145.
  94. ^ Taylor, Thomas. Lightning in the Storm. Hippocrene Books, 2003. ISBN 0-7818-1017-5.
  95. ^ Ference, Edward W. (December 2002). "Case Study of the Development of the Apache Attack Helicopter (AH-64)" (PDF). Naval Postgraduate School. Archived (PDF) from the original on 4 June 2011. Retrieved 1 October 2009.
  96. ^ Lambeth, Benjamin S. (February 2002). "Task Force Hawk" (PDF). AIR FORCE Magazine.
  97. ^ Donald 2004, p. 147.
  98. ^ "OPERATION DESERT STORM: Apache Helicopter Was Considered Effective in Combat, but Reliability Problems Persist" Archived 13 December 2013 at the Wayback Machine. GAO
  99. ^ "High Tech Weapons in Desert Storm: Hype or Reality?". Project on Government Oversight. 1 July 1992. Archived from the original on 17 February 2016.
  100. ^ "APACHE HELICOPTER: Serious Logistical Support Problems Must Be Solved to Realize Combat Potential" Archived 23 January 2016 at the Wayback Machine. GAO
  101. ^ Bishop 2005, pp. 21–24, 33.
  102. ^ "U.S. Mulls More Copters in Bosnia – The Aircraft Were Requested For U.N. Troop Reinforcement". Sarasota Herald-Tribune. 18 July 1995.
  103. ^ Adams 2006, p. 60.
  104. ^ Bowman, Tom (16 July 1999). "Army Hunts For Answers As Apaches Fail in Kosovo; Readiness, Training Faulted As 21st-century Helicopter Stumbles". The Baltimore Sun. Archived from the original on 25 October 2012. Retrieved 5 July 2017.
  105. ^ Thompson, Mark (20 June 1990). "Army Defends Troubled Copter". Spokesman-Review.
  106. ^ Anderson, Jon R. (19 December 2000). "Apaches Are Ailing Warriors". European Stars and Stripes.
  107. ^ a b Luttwak 2001, pp. 78–80.
  108. ^ Adams 2006, p. 61.
  109. ^ a b Lambeth, Benjamin. "Task Force Hawk" (PDF). Air Force Magazine. Archived (PDF) from the original on 9 October 2022. Retrieved 5 December 2021.
  110. ^ Bishop 2005, pp. 33–35.
  111. ^ Bernstein 2005, pp. 16–17.
  112. ^ Adams 2006, pp. 223–224.
  113. ^ "Afghan Field Report: British WAH-64Ds". Defense Industry Daily. 26 November 2007.
  114. ^ "Christopher Roney inquest: 'Failures led to friendly fire death'". BBC News. 7 September 2012.
  115. ^ Bishop 2005, pp. 35–37.
  116. ^ Schechter, Erik (13 June 2003). "Choppers on the Chopping Block?". The Jerusalem Post. Archived from the original on 25 October 2012. Retrieved 5 July 2017.
  117. ^ a b "U.S. Apache Pilots Taken Prisoner". CNN. 24 March 2003.
  118. ^ a b Fred Kaplan (23 April 2003). "Chop The Chopper: The Army's Apache Attack-Helicopter Had A Bad War". Slate.
  119. ^ "A City And Regime Steel For Reckoning To Come". Sydney Morning Herald. 26 March 2003.
  120. ^ "The 'Apache' Farmer's Tale". BBC News. 23 April 2003.
  121. ^ "Downed Apache Blown Up To Keep Secrets From Iraq". Evening Times. 25 March 2003. Archived from the original on 7 November 2012. Retrieved 5 July 2017.
  122. ^ "Downed US Apache Blown Up With Missile". New Straits Times. 26 March 2003.
  123. ^ Ricks, Thomas E. (2006). Fiasco: The American Military Adventure in Iraq. Penguin. p. 119. ISBN 978-1-59420-103-5.
  124. ^ "Surface-to-Air Missile Downed U.S. Chopper in Iraq". ABC News. 17 January 2006.
  125. ^ Cheryl Rodewig (7 March 2012). "Geotagging poses security risks". army.mil.
  126. ^ "Helicopter crashes in eastern Afghanistan". ISAF – International Security Assistance Force. 6 January 2012. Archived from the original on 24 March 2012.
  127. ^ "Marlborough Soldier Dies in Helicopter Crash in Afghanistan". Wmur.com. 28 May 2011. Archived from the original on 13 March 2012.
  128. ^ "Army Chief Warrant Officer 3 William T. Flanigan". militarytimes.com. Archived from the original on 8 January 2014. Retrieved 1 April 2015.
  129. ^ "Amputee Combat Vet Daniel McConnell's Inspiring Story". celebdirtylaundry.com. Retrieved 1 April 2015.
  130. ^ "AH-64D Apache – Overview" (PDF). Boeing. Archived from the original (PDF) on 29 June 2011. Retrieved 30 July 2011.
  131. ^ "Leaked Audit: Boeing Overcharged Army Up to 177,000 Percent on Helicopter Spare Parts". Project on Government Oversight (POGO). 28 June 2011.
  132. ^ Paulsboe, Jesse (12 March 2013). "'Guardian' rises at Joint Base Lewis–McChord". US Army. Retrieved 15 March 2013.
  133. ^ "US Army's AH-64Es reach initial operating capability" FlightGlobal, 27 November 2013
  134. ^ Army's First AH-64E Unit Deploys to Afghanistan Archived 6 May 2014 at the Wayback Machine – DoDBuzz.com, 5 May 2014
  135. ^ "US Army details combat experience with AH-64E". FlightGlobal, 14 October 2014
  136. ^ Commander: Army's New AH-64E Apache Surprised Enemy in Afghanistan – Military.com, 28 January 2015
  137. ^ a b New Apache confounded the enemy in combat, commander says – Armytimes.com, 1 February 2015
  138. ^ Taliban Troubled By Timing – Strategypage.com, 19 February 2015
  139. ^ Budgets & 'Betrayal': National Guard Fights To Keep Apache Gunships – Breakingdefense.com, 23 January 2014
  140. ^ Head, Elan. "Arizona Guard leader blasts Army plan to 'seize' Apaches" Vertical Magazine, 28 April 2014.
  141. ^ First of 10 Apache units converts, adds 12 Shadow UASs – Armytimes.com, 16 March 2015
  142. ^ "Army Apache helos used in strikes against Islamic State" Archived 5 October 2014 at the Wayback Machine. Military Times, 5 October 2014
  143. ^ In Iraq, Apache Gunships Deploy to Mosul, But Not Fallujah: Pentagon – Military.com, 15 June 2016
  144. ^ Apache Helicopters Go into Action in Mosul Offensive Archived 20 October 2016 at the Wayback Machine – DoDBuzz.com, 19 October 2016
  145. ^ "100 U.S. Marines, two Apache helicopters reinforcing embassy in Baghdad after attack". MarineCorpsTimes.com. 31 December 2019. Retrieved 31 December 2019.
  146. ^ "Iran launches missiles at US military facilities in Iraq". ABC News. Retrieved 7 January 2020.
  147. ^ Falconer, Rebecca. "U.S. Army investigates 2 Apache helicopter crashes within 48 hours". axios.com.
  148. ^ a b c d Donald 2004, p. 157.
  149. ^ a b Orme, William A. (3 February 2000). "Israeli Says U.S. Fears Endanger Major Purchase of Apache Copters". The New York Times.
  150. ^ Pinkas, Alon (23 March 1994). "IA Experts Criticize Air Force For Preferring Apache Over Upgraded Cobra". The Jerusalem Post. Archived from the original on 25 October 2012. Retrieved 5 July 2017.
  151. ^ "Israel Accepts First AH-64D Apache Longbows". Boeing. 11 April 2005.
  152. ^ Powers 2002, pp. 11, 49.
  153. ^ Bryen, Shoshana (23 January 2010). "QME, Part II: U.S. Arms Sales to the Arabs, And Will There Be Help For Israel". Right Side News. Archived from the original on 26 January 2010. Indeed, Israel's request for six AH-64D Apache Longbow attack helicopters was blocked by the Obama Administration in June-the same time the Egyptian sale was approved. U.S. sources reported that the request was undergoing an "interagency review to determine whether additional Longbow helicopters would threaten Palestinian civilians in the Gaza Strip".
  154. ^ "Administration Blocks Helicopters for Israel due to Civilian Casualties in Gaza". World Tribune. 27 May 2009. Archived from the original on 4 May 2011.
  155. ^ Donald 2004, p. 191.
  156. ^ a b Alon, Ben-David (18 October 2007). "Performance Dispute Puts Israeli Apache Buy on Hold". Jane's Information Group.
  157. ^ Smolowe, Jill (2 March 1992). "Vengeance Is Mine". Time. Archived from the original on 12 August 2010.
  158. ^ Kampeas, Ron (25 July 1993). "Thousands Flee Fleet, Fickle Missiles". Lakeland Ledger.
  159. ^ "Three Killed in Hizbollah, Israeli Retaliatory Attacks". New Straits Times. 24 December 1994.
  160. ^ Fisk 2005, pp. 773–788.
  161. ^ Urquhart, Conal; Gaby Hinsliff (18 April 2004). "Israeli Missile Attack Kills New Hamas Chief". The Guardian. London.
  162. ^ Philps, Alan (24 August 2001). "Second Israeli Rocket Attack Misses Target". The Telegraph. London. Archived from the original on 11 January 2022.
  163. ^ a b "Israel, The Occupied West Bank And Gaza Strip, And The Palestinian Authority Territories, Jenin: IDF Military Operations". May 2002. pp. 7, 46–47.[permanent dead link]
  164. ^ a b "Hamas Leader Killed in Gaza".
  165. ^ "Israel makes a martyr of Yassin". The Guardian.
  166. ^ "Leaders condemn Yassin killing". www.cnn.com. 22 March 2004.
  167. ^ Blanford, Nicholas (8 August 2006). "Hezbollah's Hidden Stronghold Sends Death Across The Border". The Times. UK. Archived from the original on 4 June 2011.
  168. ^ Ilsemann, Siegesmund von (31 July 2006). "Israeli's Puzzling Military Strategy". Der Spiegel.
  169. ^ Human Rights Watch (HRW), "Why They Died", Civilian Casualties in Lebanon during the 2006 War, September 2007, pp. 91, 102–103, 106, 127 ff.
  170. ^ "Hezbollah Defies Israeli Pressure". BBC News. 21 July 2006.
  171. ^ Egozi, Arie (1 August 2006). "Israeli Air Power Falls Short As Offensive in Southern Lebanon Fails To Halt Hezbollah Rocket Attacks". FlightGlobal.
  172. ^ Egozi, Arie (27 February 2009). "Israel seeks more Apache attack helicopters". FlightGlobal.
  173. ^ "Israeli choppers blast Gaza City". oil.co.za. 3 December 2001.
  174. ^ "Israeli airstrike in Gaza kills one, wounds 2". english.eastday.com. 6 November 2011. Archived from the original on 2 March 2014.
  175. ^ "Israel expands Gaza offensive". euronews.com. 6 January 2009. Archived from the original on 3 May 2013. Retrieved 8 September 2012.
  176. ^ a b c d "Israel's AH-64A Attack Helos Get Custom Upgrades – Despite the USA". Defense Industry Daily. 17 March 2014. Archived from the original on 21 March 2014.
    "Israel's AH-64A Attack Helos Get Custom Upgrades – Despite the USA [updated]". Defense Industry Daily. 26 October 2017. Archived from the original on 4 November 2017.
  177. ^ "Israel Upgrades Apache Helicopters After US Blocked Their Modernization". World Tribune. 14 March 2014. Archived from the original on 24 June 2015.
  178. ^ Egozi, Arie (30 June 2010). "Israel ditches Apache upgrade plan, commits to CH-53K". FlightGlobal.
  179. ^ Katz, Yaajov (31 December 2010). "Rapid-fire rocket system aims to reduce civilian casualties". The Jerusalem Post.
  180. ^ Egozi, Arie "Israeli Apache upgrade adds avionics pod." FlightGlobal, 8 October 2013.
  181. ^ Bryen, Shoshana; Bryen, Stephen (17 November 2016). "Israel Puts the Spike Missile on its Apache Helicopters". Jewish Policy Center.
  182. ^ "Israel shows off Spike on Apache – Air Forces Monthly". www.airforcesmonthly.com. Archived from the original on 1 December 2017. Retrieved 23 November 2017.
  183. ^ "Israel shoots down Lebanese civilian plane". CNN.
  184. ^ "Israel shoots down light aircraft". CNN. 24 May 2001.
  185. ^ "Iranian UAV Intercepted by an Israeli Helicopter". Israel Defense Forces. 10 February 2018. Archived from the original on 11 December 2021.
  186. ^ "British Army receives 67th Apache in ceremony held at the Farnborough Airshow 2004". AgustaWestland. 21 July 2004. Archived from the original on 7 July 2011.
  187. ^ Cook, Nick (1 May 1995). "High Noon For Tiger And Apache". Interavia Business & Technology. Archived from the original on 19 July 2012.
  188. ^ Flannery, William (14 July 1995). "Mac Lands $3.5 Billion Copter Order – British Buying 67 Antitank Craft". St. Louis Post-Dispatch.
  189. ^ "RTM 322". Turbomeca. Archived from the original on 3 August 2009. Retrieved 29 January 2010.
  190. ^ a b "Apache Moves Closer To Front Line". Navy News. 11 May 2004. Archived from the original on 11 June 2011.
  191. ^ "UK Announces P-8, Apache Buys". Defense News. 11 July 2016.
  192. ^ "MOD orders new fleet of cutting-edge Apache helicopters for Army". UK Ministry of Defence. 11 July 2016.
  193. ^ "United Kingdom – AH-64E Apache Guardian Attack Helicopters". DSCA. 27 August 2015.
  194. ^ "Despite Brexit, UK Not Holding Back on New Aircraft". Aviation Week. 15 July 2016.
  195. ^ "Apache AH-64E heralds new era in modern British military aviation". British Army. Retrieved 17 February 2021.
  196. ^ "British Army retires Apache AH1 attack helicopters, declares AH-64Es 'operationally ready'". Default. 26 March 2024. Retrieved 17 June 2024.
  197. ^ "McDonnell in Talks With Dutch on Apache Role". St. Louis Post-Dispatch. 13 April 1989.
  198. ^ "Dutch May Buy McDonnell Copter". St. Louis Post-Dispatch. 14 December 1994.
  199. ^ Fitchett, Joseph (13 April 1995). "Ignoring EU Solidarity, The Dutch Opt For U.S. Helicopters". The New York Times.
  200. ^ Flannery, William (8 April 1995). "McDonnell Wins Big Helicopter Contract But Layoffs Are Looming at Commercial Air Arm". St. Louis Post-Dispatch.
  201. ^ "First AH-64D Apache Pilots From The Netherlands Complete Training at Boeing". Boeing. 29 March 1999.
  202. ^ "Boeing Delivers 30th AH-64D Apache to Royal Netherlands Air Force". Boeing. 10 June 2002.
  203. ^ "News: Last Dutch Apache Delivered". helis.com. Retrieved 1 April 2015.
  204. ^ "Aircraft Survivability Equipment" (PDF). TERMA. July 2004. Archived from the original (PDF) on 27 September 2011.
  205. ^ "AMASE/DIRCM Pod During Flight Certification Testing in the Netherlands" (PDF). Terma. July 2006. Archived from the original (PDF) on 27 September 2011.
  206. ^ Strass, Marc (6 March 2002). "Army Conducts First Deployment of AH-64D Apache Longbows To Kuwait". Defense Daily. Archived from the original on 4 September 2015.
  207. ^ Atkinson, Rick (4 December 1995). "U.S. Bound for Bosnia By Train, Truck, Air". The Washington Post. Archived from the original on 25 October 2012. Retrieved 5 July 2017.
  208. ^ "Six Apaches to Iraq to Boost Security". Government.nl. 24 May 2004.
  209. ^ "More Dutch troops for Afghanistan". BBC News. 3 February 2006.
  210. ^ "Two Peacekeeping Helicopters Fired on in Kabul". CTV News. 10 April 2004. Archived from the original on 3 March 2021.
  211. ^ Gravemaker, Anno (18 December 2007). "Dutch Apache Accident Leaves 50,000 Homes Without Power". FlightGlobal.
  212. ^ "2 Apache-vliegers omgekomen in Mali". 17 March 2015. Retrieved 14 January 2022.
  213. ^ "US clears RNLAF for $1.19b Apache deal". FlightGlobal. 21 February 2018.
  214. ^ Jennings, Gareth (20 November 2020). "Netherlands ships first Apaches to US for modernisation". Jane's. Retrieved 26 November 2021.
  215. ^ "Apache Copters All Set if Iraqis Make a Move". Eugene Register-Guard. 25 August 1990.
  216. ^ Jehl, Douglas (22 January 1991). "Desert Air, Sands Alive With Modern Warriors". Los Angeles Times. Archived from the original on 26 October 2012. Retrieved 5 July 2017.
  217. ^ Koenig, Robert L. (3 June 1992). "Bush Endorses Sale of Arms to Saudis...McDonnell Douglas Could Benefit from Pact". St Louis Post-Dispatch.
  218. ^ "U.S. Plans $1.8 Billion Saudi Military Sale". The Washington Post. 3 June 1992. Archived from the original on 26 October 2012. Retrieved 5 July 2017.
  219. ^ Friedman, Thomas L. (15 September 1992). "U.S. and Israel Working Out Deal To Offset Warplane Sale to Saudis". The New York Times.
  220. ^ "The 2006 Saudi Shopping Spree: $400M to Upgrade AH-64A Apache Helicopters". Defense Industry Daily. 1 August 2006.
  221. ^ Shalal-Esa, Andrea (12 September 2008). "US OKs sale of Boeing helicopters to Saudi Arabia". Reuters.
  222. ^ Lakshman, Narayan (21 October 2010). "Huge U.S.-Saudi arms deal". The Hindu. Chennai, India.
  223. ^ "Saudi Arabia – AH-64D Apache, UH-60M Blackhawk, AH-6i Light Attack, and MD-530F Light Turbine Helicopters" (PDF) (Press release). US Defense Security Cooperation Agency. 20 October 2010. Archived from the original (PDF) on 16 May 2013.
  224. ^ "Saudi troops combing Yemen border; security stepped up". BBC News. 20 November 2009. Archived from the original on 25 October 2012.
  225. ^ "Saudi Apache gunships prevent incursion by "infiltrators"". Saudi Gazette. 6 December 2009. Archived from the original on 9 June 2011.
  226. ^ "Saudi Military Operations along the Yemen Border Repel Houthist Incursion". Jamestown. The Jamestown Foundation. 28 January 2010.
  227. ^ "Yemen rebels announce pullout from Saudi land". The Jordan Times. 26 January 2010. Archived from the original on 13 September 2015.
  228. ^ Cenciotti, David (2 December 2019). "Houthi Rebels Claim To Have Shot Down Saudi Apache Gunship And Wing Loong UAV in Yemen".
  229. ^ "Apache Helicopter Guns Down Boat Full of Somali Refugees Fleeing Yemen". Foreign Policy. 17 March 2017. Retrieved 11 August 2018.
  230. ^ "Yemen migrant boat attack kills at least 42". BBC News. 17 March 2017.
  231. ^ "The Escalating Northern Front in Yemen". Washington Institute for Near East Policy.
  232. ^ "US Copters Set For Middle East". Toledo Blade. 4 June 1991.
  233. ^ "UAE's 30-Helicopter Apache Upgrade Program Underway". Defense Industry Daily. 10 May 2009.
  234. ^ "United Arab Emirates – Apache AH-64E Helicopters and Services". Defense Security Cooperation Agency. 8 December 2016.
  235. ^ "Two Emirati pilots die in Yemen crash". The National. 17 October 2017.
  236. ^ "UAE to replace lost Apache | Jane's 360". www.janes.com.
  237. ^ a b c Bishop 2005, pp. 40–44.
  238. ^ Bishop 2005, p. 42.
  239. ^ "Egypt to Upgrade 35 Apaches to AH-64D Configuration." Boeing, 25 September 2000. Archived 10 September 2013 at the Wayback Machine
  240. ^ Feldman 2004, p. 106.
  241. ^ "AH-64D Apache Longbow helicopters for Egypt". Defence Talk. 29 May 2009.
  242. ^ "Egypt Aims to Add AH-64D Block II Attack Helicopters". Defense Industry Daily. 28 May 2009.
  243. ^ "Egypt launches airstrikes in Sinai after troop massacre." CNN, 8 August 2012.
  244. ^ Friedman, Ron. "Israel allows Egypt to keep attack helicopters in Sinai". Times of Israel, 9 August 2012.
  245. ^ a b Michaelson, Ruth (2 April 2019). "Egypt killed tourists with US weapons. An American survivor wants justice". The Guardian.
  246. ^ "Mexican tourists killed by Egyptian security forces". BBC News, 14 September 2015.
  247. ^ "Egypt – AH-64E Apache Attack Helicopters and Related Equipment and Support" (Press release). US Defense Security Cooperation Agency. 27 November 2018. Archived from the original on 27 November 2018. Retrieved 27 November 2018.
  248. ^ "US clears Apache sales for Egypt, missiles for Qatar". 27 November 2018.
  249. ^ Hoyle2022-01-19T13:52:00+00:00, Craig. "Lockheed gets sensor contract for Egyptian Apache upgrade". Flight Global. Retrieved 17 June 2024.{{cite web}}: CS1 maint: numeric names: authors list (link)
  250. ^ "IAF conducting trials for attack helicopters". Hindustan Times. 22 July 2010. Archived from the original on 18 June 2013.
  251. ^ Govindasamy, Siva (10 October 2008). "Bell, Boeing Quit Indian Attack Helicopter Contest". FlightGlobal.
  252. ^ "Boeing Submits Proposals To India For Apache And Chinook Helicopters". Boeing. 23 October 2009.
  253. ^ "US government details AH-64D bid for Indian air force contract". FlightGlobal. 4 January 2011.
  254. ^ "India – Support for Direct Commercial Sale of AH-64D Block III Apache Helicopters" (PDF) (Press release). US Defense Security Cooperation Agency. 27 December 2010. Archived from the original (PDF) on 15 June 2013.
  255. ^ "IAF getting 22 Apache helicopters: NAK Browne". Indian Express, 5 October 2012.
  256. ^ "Going To War Over Gunships". Strategypage.com, 3 January 2013.
  257. ^ "IAF, not Army, will get Apache attack helicopters". The Times of India. 2 April 2013. Archived from the original on 4 April 2013.
  258. ^ "Indian air force Apache, Chinook make flight debuts". FlightGlobal. 30 July 2018.
  259. ^ "In big boost, IAF gets first Apache Guardian attack helicopter". The Times of India. 11 May 2019. ISSN 0971-8257. Retrieved 4 April 2024.
  260. ^ a b Sura, Ajay (3 September 2019). "IAF inducts 8 Apache AH-64E attack helicopters". The Times of India. Archived from the original on 3 September 2019.
  261. ^ Gurung, Shaurya Karanbir (3 September 2019). "Eight US made Apache attack helicopters inducted into IAF". The Economic Times.
  262. ^ "India – Support for Direct Commercial Sale of AH-64E Apache Helicopters". U.S. Defense Security Cooperation Agency. 12 June 2018.
  263. ^ "India, US sign contract for additional Apache attack choppers". The Economic Times. 25 February 2020. Retrieved 29 May 2020.
  264. ^ "Army gears up to induct 1st batch of Apache attack helicopters in February–March". India Today. January 2024. Retrieved 1 January 2024.
  265. ^ "Apache Helicopter: बॉर्डर पर बढ़ेगी भारत की ताकत, पाकिस्तानी सीमा पर तैनात होने जा रहे शक्तिशाली छह अपाचे हेलीकॉप्टर". Dainik Jagran (in Hindi). Retrieved 1 January 2024.
  266. ^ "Indian Army Raises 1st Apache Attack Helicopter Squadron Near Pakistan Border". NDTV.com. Retrieved 15 March 2024.
  267. ^ "Army raises first Apache attack helicopter squadron in Jodhpur near Pak border". India Today. 15 March 2024. Retrieved 15 March 2024.
  268. ^ Arora, Sumit (19 March 2024). "Indian Army Inducts First Apache 451 Aviation Squadron". adda247. Retrieved 19 March 2024.
  269. ^ "Indian Army awaiting batch delivery of Apache attack helicopters from US". India Today. 13 August 2024. Retrieved 13 August 2024.
  270. ^ Peri, Dinakar (24 September 2024). "Army to receive Apache attack helicopters in December". The Hindu. ISSN 0971-751X. Retrieved 25 September 2024.
  271. ^ "Induction of Apache hits supply chain wall". Hindustan Times. 12 September 2024. Retrieved 20 October 2024.
  272. ^ Fiszer, Michal (1 October 2003). "Greece Buying New Helicopters (12 AH-64D Longbow helicopters)". Journal of Electronic Defense. Archived from the original on 21 July 2012.
  273. ^ "Singapore to Purchase 12 Additional Boeing AH-64D Apache Longbows". Boeing. 23 August 2001. Archived from the original on 3 June 2013.
  274. ^ "Apache training suspended". The Straits Times. 1 October 2010.
  275. ^ "Kuwait Runs Apache Longbow Contract To $262.2 M". Defense Industry Daily. 26 August 2005.
  276. ^ "USA and Indonesia formalise AH-64E Apache deal". FlightGlobal, 26 August 2013.
  277. ^ "Indonesian military displays Kaplan MT prototype, Apache helicopter". Jane's 360 (janes.com). Archived from the original on 8 October 2017. Retrieved 9 October 2017.
  278. ^ Yeo, Mike (18 December 2017). "First AH-64E Apache Guardian for Indonesia arrives from US". defensenews.com.
  279. ^ "Indonesia receives first AH-64E Apache Guardian attack helicopter". quwa.org. 19 December 2017. Retrieved 13 May 2018.
  280. ^ "Fuji Heavy Industries Delivers First Apache Longbow Helicopter to Japanese Government Under Boeing Licensing Agreement". Boeing. 15 March 2006. Archived from the original on 26 November 2011.
  281. ^ Hirokawa, Seiji (10 September 2007). "Japan to halt AH-64D Apache orders after 13th airframe". FlightGlobal.
  282. ^ Gady, Franz-Stefan (4 May 2017). "US to Upgrade Japan's Attack Helicopter Fleet". thediplomat.com.
  283. ^ "SDF helicopter crashes, goes up in flames in Saga residential area". Asahi Shimbun. 5 February 2018. Archived from the original on 21 February 2018. Retrieved 21 February 2018.
  284. ^ "Japanese Apache helicopter crashes in residential area of Saga Prefecture". Japan Times. 5 February 2018. Archived from the original on 21 February 2018. Retrieved 21 February 2018.
  285. ^ "GSDF helicopter had main rotor replaced before crash". Japan Times. 5 February 2018. Archived from the original on 7 February 2018.
  286. ^ Trimble, Stepehen (10 June 2011). "Taiwan buys 30 AH-64 Apaches". FlightGlobal.
  287. ^ "Taipei Economic and Cultural Representative Office in the United States – AH-64D Apache Helicopters and Related Weapons" (PDF). Defense Security Cooperation Agency (DSCA). 3 October 2007. Archived from the original (PDF) on 27 February 2009.
  288. ^ "Taiwan receives first batch of AH-64E Apaches". FlightGlobal, 5 November 2013
  289. ^ "Taiwan's AH-64Es Grounded After Apache Crash" Archived 27 April 2014 at the Wayback Machine. Armedforces-Int.com, 25 April 2014
  290. ^ "Crash destroys Taiwanese AH-64E Apache". FlightGlobal, 26 April 2014
  291. ^ "Pilots Blamed for Taiwan Apache Crash". Defensenews.com, 15 July 2014
  292. ^ "Taiwan received fifth and last batch of AH-64E Apache attack helicopters" Archived 26 October 2014 at the Wayback Machine. Airrecognition.com, 20 October 2014
  293. ^ Jung, Sung-ki (14 January 2009). "Seoul Seeks To Deploy Apaches In 2012". Korea Times.
  294. ^ "South Korea Dithers Over Apaches". United Press International. 7 August 2009.
  295. ^ Sung-ki, Jung (8 February 2009). "US May Withdraw More Apache Helos From Korea by 2012". Korea Times.
  296. ^ "Republic of Korea (ROK) – AH-64D APACHE Attack Helicopters". DSCA.mil, 25 September 2012.
  297. ^ "Korea helicopter bids". FlightGlobal, 26 September 2012.
  298. ^ Song, Sang-ho (17 April 2013). "Seoul to Purchase 36 Apache Helicopters". Korea Herald.
  299. ^ South Korea's first four AH-64E combat helicopters delivered to combat units Archived 1 July 2016 at the Wayback Machine – Airrecognition.com, 27 May 2016
  300. ^ South Korea completes deployment of its 36 AH-64E Apache Guardian helicopters Archived 5 February 2018 at the Wayback Machine – Airrecognition.com, 30 January 2017
  301. ^ "Quarterly Report to the United States Congress" (PDF). sigir.mil. 30 April 2013. Archived from the original (PDF) on 22 June 2013.
  302. ^ "Congress Clears Apache Sale to Iraq". Foreign Policy, 27 January 2014.
  303. ^ "Agreement reached to sell billions in Apache helicopters to Iraq" Archived 30 January 2014 at the Wayback Machine. Militarytimes.com, 28 January 2014
  304. ^ "Iraq passes on Apache buy". Jane's, 25 September 2014.
  305. ^ "Qatar – AH-64D APACHE Block III LONGBOW Attack Helicopters" (Press release). US Defense Security Cooperation Agency. 12 July 2012. Archived from the original on 18 November 2013. Retrieved 29 March 2014.
  306. ^ $23.9B in Deals Announced on Last Day of DIMDEX – Defensenews.com, 27 March 2014
  307. ^ "Qatar cleared for $3 billion purchase of 24 Boeing AH-64E Apache attack helicopters". The Defense Post. 10 May 2019. Retrieved 10 November 2022.
  308. ^ "MOD orders new fleet of cutting-edge Apache helicopters for Army". UK Ministry of Defence. 11 July 2016.
  309. ^ McLaughlin, Andrew (10 July 2019). "Tiger ARH replacement RFI released". Australian Defence Business Review. Retrieved 22 March 2021.
  310. ^ Frawley, Gerard (26 February 2016). ""Troubled" Tiger set for early retirement, new light helicopter for Special Forces on the way". Australian Aviation. Retrieved 23 March 2021.
  311. ^ Minister for Defence Senator Linda Reynolds (15 January 2021). "Future ready – strengthening Army's armed reconnaissance capability". Department of Defence Ministers (Press release). Archived from the original on 18 March 2021. Retrieved 12 March 2021.
  312. ^ a b Pittaway, Nigel (19 January 2021). "Australia selects Boeing Apache as next armed reconnaissance helicopter". Defense News. Retrieved 20 January 2021.
  313. ^ "Apaches for Army". Army: The Soldiers' Newspaper (1481 ed.). Canberra: Department of Defence. 4 February 2021. p. 2. ISSN 0729-5685. Retrieved 2 September 2022.
  314. ^ Prime Minister Scott Morrison; Minister for Defence Peter Dutton; Minister for Defence Industry, Minister for Science and Technology Melissa Price (9 May 2022). "Securing our national security and local defence jobs and skills". Liberal Party of Australia (Press release). Archived from the original on 9 May 2022. Retrieved 1 September 2022.
  315. ^ "Bangladesh wants to buy combat fighters, Apache helicopters, missile systems from US". Dhaka Tribune. 17 October 2019.
  316. ^ Herk, Hans van (2 January 2022). "Mi-28 attack helicopters for Bangladesh". www.scramble.nl.
  317. ^ "Morocco – AH-64E Helicopters". U.S. Defense Security Cooperation Agency. Retrieved 21 November 2019.
  318. ^ "Philippines – AH-1Z Attack Helicopters and Related Equipment and Support". dsca.mil. U.S. Defense Security Cooperation Agency.
  319. ^ "Philippines – Apache AH-64E Attack Helicopters and Related Equipment and Support". dsca.mil. U.S. Defense Security Cooperation Agency.
  320. ^ "Poland to choose between Apache and Viper for attack helo requirement". 21 April 2022.
  321. ^ "Poland buying 96 AH-64E Apaches, as modernization spending spree continues". 8 September 2022.
  322. ^ "Poland – AH-64E Apache Helicopters". Defense Security Cooperation Agency. 21 August 2023. Retrieved 21 August 2023.
  323. ^ "Umowa na 96 śmigłowców uderzeniowych AH-64E Apache podpisana".
  324. ^ Bishop 2005, p. 12.
  325. ^ Bledsoe, Sofia. "Army 'retires' last A model Apache helicopter". Defense Video & Imagery Distribution System. Retrieved 18 July 2012.
  326. ^ Boeing Remanufactures AH-64A Apaches to AH-64D Block II. Defense industry daily.
  327. ^ Bishop 2005, p. 10.
  328. ^ a b Donald 2004, p. 153.
  329. ^ "McDonnell-Bell plan Longbow-radar for LHX". Defense Daily. 22 February 1990. Archived from the original on 21 July 2012.
  330. ^ "AN/APR-48A Radar Frequency Interferometer" (PDF). Lockheed Martin. Archived from the original (PDF) on 20 October 2011. Retrieved 20 July 2011.
  331. ^ "Defense & Security Intelligence & Analysis: IHS Jane's – IHS". janes.com. Archived from the original on 25 October 2012. Retrieved 1 April 2015.
  332. ^ "Defense & Security Intelligence & Analysis: IHS Jane's – IHS". janes.com. Archived from the original on 16 February 2013. Retrieved 1 April 2015.
  333. ^ "Helicopter profile: Boeing AH-64 Apache". FlightGlobal. Retrieved 2 February 2010.
  334. ^ "Apache Stinger Testing in Holding Pattern until Starstreak Integration Finished". Defense Daily. 15 June 2000. Archived from the original on 18 July 2012.
  335. ^ Taylor, Ed (21 December 2005). "Japan to get first Boeing copter". East Valley Tribune.
  336. ^ Bledsoe, Sophia. "Team Apache announces nickname for the Apache Echo Model". U.S. Army, 14 January 2013.
  337. ^ "Army Renames Apache Block III Helicopters." Archived 9 November 2013 at the Wayback Machine National Defense Magazine.
  338. ^ "Interlocking gears used in clocks give Army helicopters more power Archived 20 February 2014 at the Wayback Machine", HeliHub, 28 October 2013. Archived on 20 February 2014.
  339. ^ "Boeing, US Army Mark Delivery of 1st AH-64D Apache Block III Combat Helicopter". MediaRoom. Retrieved 9 February 2019.
  340. ^ "Technology gives Apache block III more lift, capability, landing ability". www.army.mil. 26 February 2010. Retrieved 9 February 2019.
  341. ^ "Boeing-Developed Composite Rotor Blade Spins Forward". Boeing, 10 May 2004. Archived 29 June 2011 at the Wayback Machine
  342. ^ Trimble, Stephen (3 November 2011). "From Albania to Afghanistan, US Army integrates lessons into latest Apache". FlightGlobal.
  343. ^ Jennings, Gareth (30 October 2013). "ADEX 2013: US sequestration buys time for UK Apache decision makers". IHS Jane's Defence Weekly.
  344. ^ Majumdar, Dave (9 January 2013). "US Army fields first AH-64E unit, but more improvements to come". FlightGlobal.
  345. ^ Trimble, Stephen (14 October 2015). "US Army replaces Lockheed data link on AH-64 Apache". FlightGlobal.
  346. ^ "ViaSat to produce Link 16 terminals for AH-64E Apache Guardian helicopter Lots 5 and 6". airrecognition.com. Archived from the original on 27 September 2022. Retrieved 9 February 2019.
  347. ^ Drwiega, Andrew (10 November 2014). "U.S. Army's Apache Maritime Role". Aviation Today. Archived from the original on 29 November 2014. Retrieved 16 November 2014.
  348. ^ Verdict Media (17 April 2020). "US Army takes delivery of 500th Boeing AH-64E Apache Helicopter". airforce-technology.com. Archived from the original on 18 April 2020. Retrieved 18 April 2020.
  349. ^ Judson, Jen (11 October 2023). "Boeing flies upgraded AH-64E Apache for first time". Defense News.
  350. ^ Saballa, Joe (27 March 2024). "US Army Suffers Third Apache Helicopter Crash in Two Months". The Defense Post.
  351. ^ Trimble, Stephen (26 June 2014). "Boeing proposes high-speed Apache, heavier Chinook". FlightGlobal. Retrieved 9 February 2019.
  352. ^ Giangreco, Leigh (4 October 2016). "Army will not pursue AH-64F model Apache". FlightGlobal. Retrieved 9 February 2019.
  353. ^ Piasecki Compound Helicopters. combatreform.org [verification needed]
  354. ^ Host, Pat (26 October 2018). "Boeing testing high-speed Apache concept". Jane's International Defence Review.
  355. ^ Wolfe, Frank (26 April 2019). "Boeing Finished Six Wind Tunnel Tests on Compound Apache in January, Company Says". Rotor & Wing International. Archived from the original on 15 October 2019. Retrieved 15 October 2019.
  356. ^ a b Richardson and Peacock 1992, pp. 60–61.
  357. ^ Donald 2004, p. 150.
  358. ^ Donald 2004, p. 170.
  359. ^ Curran, Peggy (6 August 1986). "Local firms hope for spin-offs from big naval aircraft project". Montreal Gazette.
  360. ^ "HMS Ocean". Royal Navy/MOD. Archived from the original on 18 June 2012.
  361. ^ Myers, Meghann (5 September 2013). "Army helicopters fly from Navy ships, test joint ops". Army Times.
  362. ^ "Army Regulation 750-10 Army Modification Program" (PDF). Archived from the original (PDF) on 20 February 2013.
  363. ^ ADBR (19 March 2023). "Australian Army Apache helicopters go on contract". ADBR. Retrieved 11 May 2024.
  364. ^ a b c d e f g h i j k "World Air Forces 2022". FlightGlobal. 2022.
  365. ^ The military balance 2021. James Hackett, International Institute for Strategic Studies. Abingdon, Oxon. 2021. ISBN 978-1-00-041545-2. OCLC 1239962384.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)
  366. ^ "US aerospace major Boeing completes delivery of 37 military helicopters to India". Hindustan Times. 10 July 2020. Retrieved 11 July 2020.
  367. ^ "India, US sign contract for additional Apache attack choppers". The Economic Times. 25 February 2020.
  368. ^ 空自捜索機や陸自戦闘ヘリを廃止、無人機で代替へ…防衛予算効率化 Yomiuri Shimbun. 9 December 2022.
  369. ^ "Morocco cleared to buy 36 Apache helos". Janes.com. 20 November 2019.
  370. ^ Defensie, Ministerie van (26 October 2022). "Defensie neemt eerste vernieuwde Apache-gevechtshelikopter in ontvangst - Nieuwsbericht - Defensie.nl". www.defensie.nl.
  371. ^ Głowacki, Bartosz (16 May 2023). "Poland gets US-made HIMARS, early Apaches in latest defense boost". Breaking Defense. Retrieved 13 October 2023.
  372. ^ Jennings, Gareth (20 March 2019). "Qatar receives first Apache attack helicopter". Jane's 360. Archived from the original on 20 March 2019. Retrieved 20 March 2019.
  373. ^ Judson, Jen (23 February 2017). "Saudi Arabian National Guard helicopter force takes shape". Defense News. Retrieved 27 February 2018.
  374. ^ Robertson, Noah; Losey, Stephen (19 August 2024). "US approves $3.5 billion sale of Apache helicopters to South Korea". Defense News. Retrieved 20 August 2024.
  375. ^ Hager, Jeffrey (1 December 2015). AH-64E Apache Remanufacture (AH-64E Remanufacture) (Report). Fort Belvoir, VA: Defense Technical Information Center. doi:10.21236/ad1018969.
  376. ^ Bishop 2005.
  377. ^ Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.
  378. ^ "AGM-65 Maverick" (PDF). Raytheon. 2001. Archived from the original (PDF) on 4 November 2013. Retrieved 22 December 2011.
  379. ^ "AN/APG – Equipment Listing". designation-systems.net

Bibliography

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