Lockheed AH-56 Cheyenne

Lockheed AH-56 Cheyenne
Страна	Сащ
Роля	Атака хеликоптер
Първи полет	21 септември 1967 г.
Построен	10

1. Локхийд AH-56 Шайен Това е атакуващ хеликоптер, разработен от Lockheed за армията на САЩ. Тя се издига от програмата на армията за усъвършенствана въздушна огнева поддръжка (AAFSS), за да разположи първия специален атакуващ хеликоптер на службата. Lockheed проектира Cheyenne с помощта на четирилопатна система с твърд ротор и конфигурира самолета като комбиниран хеликоптер с ниско монтирани крила и монтирано на опашката тласкащо витло, задвижвано от турбовал двигател General Electric T64. Cheyenne трябваше да има високоскоростна способност да осигури въоръжен ескорт за транспортните хеликоптери на армията, като Bell UH-1 Iroquois.

Източник: Lockheed AH-56 Cheyenne в Уикипедия

AH-56 Cheyenne Walk Around
Фотограф	Майк Фортин
Локализация	Не знам
Снимки	22

AH-56 Cheyenne 1

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AH-56 Cheyenne 9

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General Characteristics and Role

The Lockheed AH-56 Cheyenne was an advanced attack helicopter developed for the United States Army as part of the Advanced Aerial Fire Support System (AAFSS) program during the Vietnam War era. It featured a revolutionary design, combining the agility of a helicopter with the high speed of a fixed-wing aircraft. The Cheyenne utilized a rigid rotor system and a pusher propeller to achieve speeds far greater than conventional helicopters of the time. The aircraft incorporated a sophisticated stabilized gun turret and a separate crew station for the gunner, with the commander/pilot located behind. Though highly innovative and setting several speed records, the program was ultimately canceled in 1972 due to political infighting, high costs, and technical complexity, paving the way for the eventual development of the AH-64 Apache.

Property	Typical Value (AH-56A)
Роля	Attack and Reconnaissance Helicopter
National Origin	САЩ
Производителя	Lockheed Corporation
First Flight	21 септември 1967 г.
Номер построен	10 Prototypes
Екипажа	2 (Pilot/Commander, Gunner)
Length (Fuselage)	16.66 m (54 ft 8 in)
Rotor Diameter	15.62 m (51 ft 3 in)
Височина	4.19 m (13 ft 9 in)
Empty Weight	5,800 kg (12,780 lb)
Max Takeoff Weight	13,380 kg (29,500 lb)

Powerplant and Performance

Engine: One General Electric T64-GE-16 turboshaft engine.
Power Output: 2,927 kW (3,925 hp).
Propulsion System: Combined main rotor, anti-torque tail rotor, and a 3-bladed auxiliary pusher propeller (providing forward thrust at high speeds).
Maximum Speed: 393 km/h (244 mph; 212 kn) (Self-imposed limit; capable of higher speeds).
Range: 1,955 km (1,215 mi; 1,055 nmi).
Unique Feature: Employed a Lockheed rigid rotor system which allowed it to transition smoothly between helicopter and autogyro flight modes, greatly enhancing high-speed stability.

Armament and Fire Control

Armament System: Featured a chin-mounted turret with a 30 mm M129 grenade launcher or 40 mm XM140 grenade launcher, and a belly-mounted 30 mm XM52 cannon turret (operated by the gunner).
Weapon Stations: 6 underwing hardpoints for rockets and missiles. Typical load included:
- Hydra 70 rockets.
- TOW anti-tank guided missiles.
Fire Control: Incorporated an advanced, stabilized gunner’s station, allowing the gunner to rotate 360 degrees and aim independently of the helicopter’s direction of flight. The gunner’s seat rotated with the turret.
Fate: Despite its advanced capabilities, the AH-56 was deemed too complex and expensive, leading to the cancellation of its production contract in 1972.