![]() ![]() ![]() The QTR study is one of five designs one of the five is also a Boeing program, an advanced version of the CH-47 Chinook. The contract was awarded to Bell Helicopter, which is teaming with Boeing's Phantom Works. Army's Aviation Applied Technology Directorate for an 18-month conceptual design and analysis study lasting through March 2007, in conjunction with the Joint Heavy Lift program. In September 2005, Bell and Boeing received a cost-sharing contract worth US$3.45 million from the U.S. A parallel Computational Fluid Dynamics (CFD) study confirmed these findings. An experimental investigation in helicopter mode with ground effect found that it was possible to reduce the download on the aircraft from 10% of the total thrust to an upload of 10% of the thrust. This effort was initially funded by NASA/AFDD and subsequently by Bell. įrom 2000 to 2006, studies of the aerodynamics and performance of a Quad Tilt Rotor were conducted at the University of Maryland, College Park. ![]() Development was not pursued by the US Department of Defense. Bell received contracts to study related technologies in 2000. The design was downsized to be more V-22-based and to have a payload of 18,000 to 20,000 lb (8,200 to 9,100 kg). ![]() This design was to have a maximum takeoff weight of 100,000 lb (45,000 kg) with a payload of up to 25,000 lb (11,000 kg) in a hover. The design was for a C-130-size V/STOL transport for the US Army's Future Transport Rotorcraft program and would have 50% commonality with the V-22. The Bell Boeing team disclosed a Quad TiltRotor design in 1999 which the companies had been investigating during the previous two years. Development Background īell developed its model D-322 as a quad tiltrotor concept in 1979. It would have a cargo capacity roughly equivalent to the C-130 Hercules, cruise at 250 knots, and land at unimproved sites vertically like a helicopter. Army's Joint Heavy Lift program (a part of Future Vertical Lift program). 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. ![]()
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