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The Bell Boeing Quad TiltRotor (QTR) is a proposed four-rotor derivative of the Bell Boeing V-22 Osprey developed jointly by Bell Helicopter and Boeing.The concept is a contender in the U.S. Army's Joint Heavy Lift program (a part of Future Vertical Lift program).
A quadcopter, also called quadrocopter, or quadrotor [1] is a type of helicopter or multicopter that has four rotors. [ 2 ] Although quadrotor helicopters and convertiplanes have long been flown experimentally, the configuration remained a curiosity until the arrival of the modern unmanned aerial vehicle or drone.
Utility VTOL testbed. Inverted rotors. [19] Dufaux triplane: Switzerland: Experimental: 1909-Central rotor and engine. Built but could not fly. [20] FLUTR model 1: Germany: Flying car: 2018: Project: 0 [21] Focke-Achgelis Fa 269: Germany: Twin rotor: Fighter: 1943-Inverted rotors. [22] IAI Panther: Israel: Trirotor: Recon UAV: 2011: Prototype ...
The Bell 429 GlobalRanger is a light, twin-engine helicopter developed by Bell Helicopter and Korea Aerospace Industries. The first flight of the prototype took place on February 27, 2007, [4] and the aircraft received type certification on July 1, 2009. [5] The Bell 429 is capable of single-pilot IFR and Runway Category A operations. [6]
Bell announced its new project after the Bell 429 and Bell V-22, the super medium Bell 525, previously it was known as Project X or Magellan. The Helicopter is overall designed for trips of 50 to 500 nautical miles, and has a 5-blade main rotor powered by twin engines, digital controls and Garmin G5000H screen, with planned seating for 16-20 people. [3]
The HH-43F was the last model delivered to the USAF, these differed from earlier models primarily by engine and rotor modifications that produced greater lift. [ 7 ] The Huskie was deployed overseas during the Vietnam War ; several detachments of the Pacific Air Rescue Center, the 33d , 36th , 37th , and 38th Air Rescue Squadrons, and the 40th ...
The engine is limited to 95 horsepower due to torque limits on the main gearbox and rotor system. As of June 2010, five runs of about 30 kits each had been delivered to builders, for a total of 160 kits, of which more than 80 had been completed and were flying, with another kit being completed every other month, on average (delivery of a sixth ...
Turboshaft engine with a maximum and normal power rating of 2,200 and 1,850 shp (1,640 and 1,380 kW) and a pressure ratio of 6:1; high-speed version of the T55-L-3 [21] allowed for use on the Chinook instead of the geared YT55-L-3 engine due to August 1958 engine contract modification, with the reduction gearing now provided in the helicopter ...