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Lockheed Martin X-56A (MUTT)


Experimental Unmanned Aerial Vehicle (UAV)


United States | 2013



"The Lockheed X-56A unmanned experimental air vehicle is being used by NASA to further research active flutter control."

Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Lockheed Martin X-56A (MUTT) Experimental Unmanned Aerial Vehicle (UAV).
2 x JetCat P400 turbojet engines developing 90lb of thrust each.
Propulsion
172 mph
277 kph | 150 kts
Max Speed
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Lockheed Martin X-56A (MUTT) Experimental Unmanned Aerial Vehicle (UAV).
0
(UNMANNED)
Crew
27.9 ft
(8.50 m)
O/A Width
485 lb
(220 kg)
Empty Weight
485 lb
(220 kg)
MTOW
Variants
Notable series variants as part of the Lockheed Martin X-56A (MUTT) family line.
X-56A "Fido" - Initial aircraft.
X-56B "Buckeye" - Second aircraft.
Authored By: Staff Writer | Last Edited: 07/14/2021 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

Flutter affects the wing assemblies of any aircraft at speed, causing a violent oscillation to take place which ultimately destroys the wing and, of course, the aircraft. For decades, the solution has been to use rigid wings which added weight, increased fuel consumption and drag and limited operational range. Today, Lockheed Martin (in conjunction with NASA Dryden Flight Research Center, Edwards AFB California) is using its X-56A test aircraft, complete with an active flutter suppression system coupled to specially-designed flexible wings, in an attempt to counter the forces of "aeroelasticity". First flight of the X-56A was recorded in July of 2013. The vehicle features a wingspan of 28 feet, weighs 480lbs and can reach speeds of 150 knots (flutter is expected around 110 knots). The X-56A incorporates a parachute system for recovery should its experimental wings fall to uncontrollable forces during flight.

The X-56A is designed as a "flying wing" blended body air vehicle with vertical surfaces added at the wingtips. The fuselage houses the twin-engine arrangement, avionics and fuel stores while the undercarriage is of a conventional wheeled tricycle arrangement. Power is served through 2 x JetCat P400 turbojet engines mounted along the top rear of the fuselage. Lockheed has produced a pair of X-56A fuselages with a modular wing system to make use two different wing types - one rigid and another flexible - both featuring active flutter suppression sensors and controls. For early testing, a basic rigid wing is being used to see verify the validity of the rigid-wing arrangement. The flexible wings will feature glass-fiber construction an active flutter controlling while the finalized rigid wings (with their own anti-flutter controls) will be tested in early 2014.

The project hopes to provide clues in the containment of the violent effects inherent in flutter during flight, encouraging the growth of more fuel efficient, longer-range aircraft for both civil and military markets. The X-56A program is expected to cover some five years of research in which Lockheed will manage twenty flights prior to handoff to NASA personnel for formal flexible wing research.

Two X-56 vehicles were built for the flight-testing program. The first has been named "Fido" and the Second "Buckeye".

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July 2013 - A first-flight involving the X-56A was recorded.

September 2015 - The aircraft completed its latest round of flight testing during September of 2015.

November 2015 - The first X-56A flyer crashed on take-off after having accomplished a total of sixteen flights. This was the first flutter suppression test flight.

January 2017 - The flooding of the lakebed at Edwards AFB has meant a postponement of future (program expansion) flights involving the X-56A. Eight flights are currently scheduled.

October 2017 - The X-56A is set to resume flight testing in mid-November. Because of earlier issues that led to the first aircraft crashing during take-off, the design will be revised in the second prototype.

October 2018 - The X-56A project has succeeded in demonstrating active suppression of flutter through its flexible wing design.

July 2021 - It was reported that the X-56B, undeNASA control, was lost to a flight anomaly.

Operators
Global customers who have evaluated and/or operated the Lockheed Martin X-56A (MUTT). Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 2 Units

Contractor(s): Lockheed Martin - USA
National flag of the United States

[ United States ]
1 / 2
Image of the Lockheed Martin X-56A (MUTT)
Image from NASA press release.
2 / 2
Image of the Lockheed Martin X-56A (MUTT)
Image copyright Lockheed Martin marketing material.

Going Further...
The Lockheed Martin X-56A (MUTT) Experimental Unmanned Aerial Vehicle (UAV) appears in the following collections:
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