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The Bell V-280 Valor is a tiltrotor aircraft being developed by Bell Helicopter for the United States Army's Future Vertical Lift (FVL) program. [2] The aircraft was officially unveiled at the 2013 Army Aviation Association of America's (AAAA) Annual Professional Forum and Exposition in Fort Worth, Texas.
The Helicycle helicopter is the first experimental helicopter kit in mass-production to be powered by a turbine engine, the military surplus Solar T62-T32, capable of producing 150 shaft horsepower. The engine is limited to 95 horsepower due to torque limits on the main gearbox and rotor system.
The attack helicopters have only to rise from cover briefly to fire their missiles before returning to a concealed location. [7] Late-development of attack helicopters, such as the Mil Mi-28N, the Kamov Ka-52, and the AH-64D Longbow, incorporate sensors and command and control systems to relieve the requirement for scout helicopters.
In January 2021, Sikorsky-Boeing announced the Defiant X variant, specifically designed for the Future Long-Range Assault Aircraft program. [23] In February 2022, Sikorsky-Boeing picked Honeywell's new HTS7500 engine, a derivative of the Honeywell T55 engine that powered the SB-1 demonstrator, as the powerplant. [24]
A flight harness is used for the carriage of trained personnel (rescuers). The harness allows for secure comfortable flight and maximum mobility. In most cases this is a full-body style harness and can vary from specifically designed harnesses to off the shelf harnesses commonly used by workers working at height. Rescue harness
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The S-52 was the first helicopter to be flown in a loop, as flown by Harold E. Thompson on 19 May 1949. [5] The two-seat version was modified into the S-52-2, a four-seat helicopter using a 245 hp (183 kW) Franklin O-425-1 air-cooled flat-six, which was moved slightly to the rear to accommodate the enlarged cabin. [4]
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-64E Apache attack helicopters and related equipment for ...