Quad TiltRotor Wraps Up Wind Tunnel Testing | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

** Airborne 04.14.14--CLICK HERE! ** HD iPad-Friendly Version--Airborne 04.14.14 **
** Airborne 04.11.14--CLICK HERE! ** HD iPad-Friendly Version--Airborne 04.11.14 **
** Airborne 04.09.14--CLICK HERE! ** HD iPad-Friendly Version--Airborne 04.09.14 **

Tue, Sep 19, 2006

Quad TiltRotor Wraps Up Wind Tunnel Testing

V-22... Times Two

If you like the twin-engine, twin-rotor Bell-Boeing V-22 Osprey... you'll love what just came out of the wind tunnel.

Testing has just been wrapped up on the Quad TiltRotor -- a four-engine tilt-rotor about the size of a Lockheed C-130 Hercules. The aircraft would take off like a helicopter, lifted by four huge rotors... two forward and two aft.

"It is a more complex aircraft, but it is what we consider a very logical extension of the V-22," said Alan Ewing, manager of advanced concept development for Bell, to the Dallas Morning News.

A one-fifth scale model has been undergoing tests at the NASA Langley Research Center Transonic Dynamics Tunnel, as part of the Army's Joint Heavy Lift project.

If the research conducted at Langley pans out, Bell-Boeing hopes to build a proof-of-concept demonstrator as early as 2008.

Still to be determined is which manufacturer will provide the four engines needed to power the aircraft -- engines that need to provide enough ooomph to keep the Quad TiltRotor in the air, even if two are inoperable.

One of the biggest issues facing designers on the Osprey was creating a driveshaft to keep its two rotors in sync, and allow one engine to power both rotors. That problem -- since resolved on the Osprey -- is compounded by the additional complexity of the Quad TiltRotor.

Besides the Bell-Boeing team, three other teams are also competing for the Joint Heavy Lift Project. Sikorsky has two entries in the competition, each with two counter-rotating main rotors, one placed on top of the other. One also includes conventional pusher-propellers for forward flight.

Boeing's Phantom Works is also working on an advanced tandem-rotor helicopter, a modern version of the venerable CH-47 Chinook. Another company, Karem International, is working on what it calls an "optimum-speed" tilt-rotor.

FMI: www.globalsecurity.org/military/systems/aircraft/qtr.htm

Advertisement

More News

Aero-TV: Active Winglets -- Tamarack Aerospace Partners with Cessna

Innovative Aerodynamic Technologies Produce Game-Changing Results At the NBAA 2013 convention, ANN CEO and Editor-In-Chief, Jim Campbell had a chance to talk with Tamarack Aerospac>[...]

ANN's Daily Aero-Linx (04.16.14)

Seawings The largest flying boat reference web site and home of the flying boat -- in detail -- on the web; specializes in providing information for the scale modeler in the form o>[...]

ANN's Daily Aero-Term (04.16.14): Density Altitude

Pressure altitude corrected for nonstandard temperature. Density altitude is used in computing the performance of an aircraft and its engines.>[...]

Aero-News: Quote Of The Day (04.16.14)

“This upgrade is an important step in laying the foundation for the NextGen system, which provides controllers a much more precise view of the airspace, gives pilots much mor>[...]

ANN FAQ: ANN's News Portal Syndication Program

Get A Customized ANN News Portal For YOUR Website! As we promised, the ever-so-busy software geeks at ANN have been working overtime on a number of cool new tools and toys... and t>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2014 Web Development & Design by Pauli Systems, LC