Quad TiltRotor (QTR) aircraft development contract awarded
September 24, 2005 The team of Bell Helicopter and Boeing has been awarded a $3.45 million contract by the U.S. Army to perform conceptual design and analysis of its Quad TiltRotor (QTR) aircraft for the Joint Heavy Lift (JHL) Program. "The Bell Boeing team is exceptionally pleased to have been one of the teams chosen by the Joint Service Team to take the first step in providing a truly transformational vertical lift cargo aircraft," said Mike Redenbaugh, chief executive officer of Bell Helicopter. "The critical need for long range, high speed, heavy lift without access to runways is being highlighted around the world every day."
"We view this as an important first step toward defining the next generation of high-speed, heavy-lift rotorcraft," said Ron Prosser, Boeing Phantom Works vice president and general manager of Integrated Defense Advanced Systems. "This Bell Boeing effort is a great opportunity to demonstrate the utility of cutting edge technology in meeting joint service needs."
Bell Boeing's QTR is an evolutionary application of its tiltrotor technology utilized in the V-22 Osprey. The QTR is a tandem-wing, four-proprotor aircraft with a large cargo fuselage and a rear-loading ramp. Four turboshaft engines, each mounted in one of four tilting wingtip nacelles, power the proprotors through interconnected transmissions for redundancy.
The QTR design will be sized, refined and analyzed over the next 18 months to determine program requirements and feasibility of further development. Bell Helicopter , a subsidiary of Textron Inc., is a leading producer of commercial and military helicopters and the pioneer of the revolutionary tiltrotor aircraft.
About the Author
Mike grew up thinking he would become a mathematician, accidentally started motorcycle racing, got a job writing road tests for a motorcycle magazine while at university, and became a writer. As a travelling photojournalist during his early career, his work was published in a dozen languages across 20+ countries. He went on to edit or manage over 50 print publications, with target audiences ranging from pensioners to plumbers, many different sports, many car and motorcycle magazines, with many more in the fields of communication - narrow subject magazines on topics such as advertising, marketing, visual communications, design, presentation and direct marketing. Then came the internet and Mike managed internet projects for Australia's largest multimedia company, Telstra.com.au (Australia's largest Telco), Seek.com.au (Australia's largest employment site), top100.com.au, hitwise.com, and a dozen other internet start-ups before founding Gizmag in 2002. Now he writes and thinks.
All articles by Mike Hanlon
QIR\'s are dangerous. Look at all that weight on the extremity of the wing. Precision is everything here. If an engine goes - you are done. Fuel efficiency at its worst I\'d say. We are working on an electric plane that sends the power out to the props and keeps the weight centered. It uses the thermals and can land on water or self launch on water. It can fly on zero fuel. A video will be ready soon.
donwine, It can fly on zero fuel? That is amazing! Why not have the engines in the fuselage, and run drive shafts to the props. Surely you don\'t have an electric vertical take off plane?
by no fuel, you mean electric power? and it has a drive system to the props mounted on the wings? which of course deals with the other side of the coin in having gearboxes handle the power distribution and risk of failure etc. Any tilt rotor ac is going to have a high risk profile in helicopter mode, and due to structural limitations with having four engines on the end of wings the glide ratio is going to be bad etc. but all this with a grain of salt considering that modern turbines are as reliable as we can hope for. With your project where can I find additional info?
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