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Lockheed Martin X-56A (MUTT)


Experimental Unmanned Aerial Vehicle (UAV) [ 2013 ]



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



Authored By: Staff Writer | Last Edited: 07/14/2021 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.

GO TO SPECIFICATIONS [+]
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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".©MilitaryFactory.com
Note: The above text is EXCLUSIVE to the site www.MilitaryFactory.com. It is the product of many hours of research and work made possible with the help of contributors, veterans, insiders, and topic specialists. If you happen upon this text anywhere else on the internet or in print, please let us know at MilitaryFactory AT gmail DOT com so that we may take appropriate action against the offender / offending site and continue to protect this original work.

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.

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Specifications



Service Year
2013

Origin
United States national flag graphic
United States

Status
RETIRED
Not in Service.
Crew
0
UNMANNED
Production
2
UNITS


National flag of the United States United States
(OPERATORS list includes past, present, and future operators when applicable)
X-Plane (Developmental, Prototype, Technology Demonstrator)
Aircraft developed for the role of prototyping, technology demonstration, or research / data collection.
Unmanned Capability
Aircraft inherently designed (or later developed) with an unmanned capability to cover a variety of over-battlefield roles.


Width/Span
27.9 ft
(8.50 m)
Empty Wgt
485 lb
(220 kg)
MTOW
485 lb
(220 kg)
Wgt Diff
+0 lb
(+0 kg)
(Showcased structural values pertain to the base Lockheed Martin X-56A (MUTT) production variant)
Installed: 2 x JetCat P400 turbojet engines developing 90lb of thrust each.
Max Speed
172 mph
(277 kph | 150 kts)


♦ MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030


(Showcased performance specifications pertain to the base Lockheed Martin X-56A (MUTT) production variant. Performance specifications showcased above are subject to environmental factors as well as aircraft configuration. Estimates are made when Real Data not available. Compare this aircraft entry against any other in our database or View aircraft by powerplant type)
None.


Supported Types




(Not all ordnance types may be represented in the showcase above)
X-56A "Fido" - Initial aircraft.
X-56B "Buckeye" - Second aircraft.


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Images Gallery



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.


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