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The PZL SW-4 Puszczyk (en: tawny owl) is a Polish light single-engine multipurpose helicopter manufactured by PZL-Ĺwidnik.Following a protracted development, the SW-4 entered service in 2002, the primary operator of the type has been the Polish Armed Forces.
M60C machine gun and Mk 40 FFAR Armament Subsystem, Helicopter, 2.75-Inch Rocket Launcher, M17: UH-1B/C Iroquois Mk 40 FFAR Armament Subsystem, Helicopter, 7.62-MM Machine Gun - 2.75-Inch Rocket Launcher, Twin, High Rate, M21: UH-1B/C/M Iroquois M134 machine gun and Mk 40 FFAR Guided Missile Launcher, Helicopter Armament Subsystem, M22: UH-1B/C ...
The Bell Huey family of helicopters includes a wide range of civil and military aircraft produced since 1956 by Bell Helicopter.This H-1 family of aircraft includes the utility UH-1 Iroquois and the derivative AH-1 Cobra attack helicopter series and ranges from the XH-40 prototype, first flown in October 1956, to the 21st-century UH-1Y Venom and AH-1Z Viper.
A Bell XH-40, a prototype of the UH-1 The first Bell helicopter to use a turbine engine was a modified Model 47 (designated XH-13F ), which had its initial flight in October 1954. The U.S. Army began a competition for a new helicopter for general utility and medical/casualty evacuation in 1955.
Powered by a prototype Lycoming YT53-L-1 (LTC1B-1) engine producing 700 shp (520 kW), the XH-40 first flew on 20 October 1956, [6] at Fort Worth, Texas, with Bell's chief test pilot, Floyd Carlson, at the controls. Even prior to the first flight, the Army had placed an order for six YH-40 service test helicopters. During 1957, a further two ...
Location of flight controls in a helicopter. Helicopter flight controls are used to achieve and maintain controlled aerodynamic helicopter flight. [1] Changes to the aircraft flight control system transmit mechanically to the rotor, producing aerodynamic effects on the rotor blades that make the helicopter move in a desired way.