Forum: Modern Military Aircraft

sufaviper wrote:

Anyone else notice the 3 F-32's flying by below that AEW V-22?

Sufa Viper

Well, it is as 12 year old concept drawing.

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Navair To Test Special Version Of Winglets On V-22 By Guy Norris | April 16 , 2012

http://www.aviationweek.com/Article.asp ... 446895.xml

"The ability of the Bell Boeing V-22 Osprey tiltrotor to fly farther, as well as faster, than helicopters has been a key factor in its fight for survival for more than a decade. But now, with both CV-22B and MV-22B versions recently pressed into service on longer-range, self-deployed combat and rescue missions in Libya and Afghanistan, the hunt is on for greater unrefueled performance.

Squeezing more range out of the V-22 is not easy, however. Constrained from birth by the need to fit on the restricted decks of U.S. Navy amphibious assault ships, the tiltrotor was necessarily limited to smaller-than-optimal wing and rotor dimensions leading to an inevitable impact on range. Without the options of increasing wingspan or rotor diameter available to them, designers are taking a leaf out of the Boeing Commercial Airplanes playbook and studying nacelle-mounted “sails” that work on the same principle as winglets....

...around a 5% increase in the self-deployment range...."

spazsinbad wrote:

Navair To Test Special Version Of Winglets On V-22 By Guy Norris | April 16 , 2012

http://www.aviationweek.com/Article.asp ... 446895.xml

"The ability of the Bell Boeing V-22 Osprey tiltrotor to fly farther, as well as faster, than helicopters has been a key factor in its fight for survival for more than a decade. But now, with both CV-22B and MV-22B versions recently pressed into service on longer-range, self-deployed combat and rescue missions in Libya and Afghanistan, the hunt is on for greater unrefueled performance.

Squeezing more range out of the V-22 is not easy, however. Constrained from birth by the need to fit on the restricted decks of U.S. Navy amphibious assault ships, the tiltrotor was necessarily limited to smaller-than-optimal wing and rotor dimensions leading to an inevitable impact on range. Without the options of increasing wingspan or rotor diameter available to them, designers are taking a leaf out of the Boeing Commercial Airplanes playbook and studying nacelle-mounted “sails” that work on the same principle as winglets....

...around a 5% increase in the self-deployment range...."

That's odd. I would have thought that extending the wings past the nacelles would only interfere with the the way the rotors cancel the wingtip vortexes. If you add winglets, you add weight, drag, and interference.

V-22 Osprey Guidebook 2011-12

http://www.boeing.com/ospreynews/2011/i ... debook.pdf (3.5Mb)

V-22 Certified On Large Deck Carriers, Exec. Says (DEFENSE DAILY 25 MAY 12) ... Mike McCarthy

http://www.hrana.org/news.asp#V22Certified

NEW YORK --The Navy has certified the V-22 Osprey for operations on large deck aircraft carriers, the manufacturers of the tiltrotor aircraft said yesterday.

The certification was completed with a latest round of testing aboard the USS George H.W. Bush (CVN 77) earlier this month and it could be a step forward for the Navy’s version of the V-22 program that has not yet been funded for production, John Rader, the Bell Helicopter Textron- Boeing partnership’s vice president for the V-22 program, told reporters.

The Navy’s program of record calls for buying 48 V-22s, and the service is examining options for replacing its C-2 Greyhound cargo planes capable of landing on carriers. Marine Col. Greg Masiello, the V-22 program manager, said in April the that the Navy was nearing completion on an analysis of alternatives (AoA) for the C-2 successor.

Rader met with reporters during the Navy’s Fleet Week, which included showcasing the V-22.

The Marine Corps is the biggest customer of the V-22, which so far has largely operated off amphibious warships. The Marine Corps plans to buy a total of 360 of its version known as the MV-22.

The House of Representatives last week signed off the Pentagon request to purchase 91 MV-22s and seven Air Force variants, the CV-22s, under a second multi-year contract. The Pentagon had lowered the planned 120 under the five-year buy because of budget constraints. Rader said negotiations on the contract with the Pentagon were ongoing.

Rader also said he was hopeful that the Navy will begin funding procurement in the next several years.”

MV-22B OSPREY SHORT TAKEOFF AND MINIMUM RUN-ON LANDING TESTS ABOARD LHD CLASS SHIPS
Virginia T. Mitchell & William P. Geyer | V-22 Ship Suitability Engineer
Naval Air Warfare Center Aircraft Division, Patuxent River, Maryland

Quote:

"ABSTRACT
This paper describes recent ship suitability tests conducted by the V-22 Test Team in March 2008 aboard USS IWO JIMA (LHD 7). This testing encompassed expanding the Short Takeoff (STO) envelopes and developing a new landing technique termed Minimum Run-on Landing (MROL) to extend V-22 shipboard capability beyond Vertical Takeoff and Landing (VTOL) gross weights (GW). The objectives included: initial development of the MROL technique in the shipboard environment; expansion of STO and MROL GW envelopes to 58,000 lb (lb), 10% above the maximum VTOL GW;...

...CONCLUDING REMARKS
The STO GW envelope was expanded, although not to the fullest extent of the aircraft capability due to insufficient time at-sea. MROL demonstrated to be a revolutionary and safe way to land aboard ship at GWs heavier than VTOL capability and will continue to be developed and tested...."

http://www.vtol.org/f65_bestPapers/test ... uation.pdf (1.2Mb)

This PDF was available at URL but no longer - so it is attached.

Forum: Modern Military Aircraft

Can a COD V-22 Transport F-35B/C Engines to CVN/LHA?