Grumman X-29
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Grumman X-29

Designed to explore hitherto theoretical aerodynamic virtues of forward swept wings which promised improved agility, spin-proof flying characteristics, good low-speed handling and reduced stalling speeds, the Grumman Model 712, designated X-29A by the US Air Force, was a single-seat jet aircraft fitted with a wing mounted at the rear of the fuselage, swept forward at 35, and having shoulder-mounted canards just behind the cockpit. Powered by a single GE F404 turbofan, the aircraft used major components of other aircraft to keep costs down, including an F-5A forward fuselage and nose landing gear, and F-16 main landing gear and control surface actuators. Two prototypes were ordered in 1981 under an $80 million contract. The first aircraft flew on 14 December 1984 but was grounded on 6 December 1988 after its 242nd flight. The second X-29A, flown for the first time on 23 May 1989, completed its flight test programme in October 1991. Between them the two aircraft completed 374 flights (more than any other X-craft) and demonstrated angles of attack up to 67 (the target was 80). They also flew at Mach numbers up tp 1.52 and reached altitudes up to 12200m. Both aircraft are now in store at the Ames-Dryden Flight Research Facility of NASA at Edwards AFB, California.

Grumman X-29A three-view drawing (600 x 491)

 ENGINE1 x General Electric F404-GE-400, 72.5kN
    Take-off weight8072 kg17796 lb
    Empty weight6258 kg13797 lb
    Wingspan8.3 m27 ft 3 in
    Length16.4 m54 ft 10 in
    Height4.4 m14 ft 5 in
    Wing area17.5 m2188.37 sq ft
    Max. speed1820 km/h1131 mph
    Ceiling15300 m50200 ft

Fred Webster, 23.04.2014

Wow lots of comments. For Tony, the 'return to base' was a lot more than indicated, it was at the end of the second or third flight when some rolls that weren't on the test card were done at low altitude. This is generally a big 'no,no' in flight testing. The mission was already over, but Chuck was grounded for a few flights by the Air Force. In the long run a very minor incident in Chuck's long and distinguished career. For Ed bates, the first and almost all of the flights were at EAFB. You probably saw the first taxi tests which were done at Calverton. On the high speed taxi test, the acft actually got a few inches into the air before setting back down on the runway. The second acft is currently at EAFB parked in front of the Dryden ( now Armstrong) Flight research Center.

Ed Bates, 16.01.2014

I worked @ Grumman Calvertion during the days when chuck took this amazing engineering design for its first flight. I was right across the flight line in a small hanger doing retrofit on returned from flight A6 Intruders and the EA6B. I cannot comment much on the X-29 as it was highly guarded back then but watching it fly, was enough. Oh yeah, and the X-29 sticker on my roll away.. Chuck was an amazing man.....and excellent pilot.
I do recall Tony's comment above regarding Chucks desire to take the plane into more aggressive moves and was thwarted.

Midway, 05.10.2013

Damn. This would make an excellent demo display aircraft!

Doug Baril, 04.05.2013

My email is

Doug Baril, 04.05.2013

My father worked at Grumman for almost 30 years as a master sheet metal mechanic and often times was tasked with special projects. During his career he assembly several lunar modules, F-14's for 10+ years, 3 space shuttles, and both of the X-29's. Sadly he passed away in 1984 when I was only 11 years old and he never saw the plane in flight. I would appreciate any information that any of you may know about him. His name was Richard Baril.

zifeng, 21.06.2011

At one point I received information stateing that the second aircraft had problems when being flown from Edwards Air Force Base to Dayton, Ohio. Is this true

, 21.06.2011

Grumman X-29

Pat McDowell, 17.06.2011

Ray, I worked with your uncle Bob McGuckin on the X-29 landing gear program when I was at Menasco. We actually hired him for a short time after he left Grumman. The last time I spoke with him, he was in El Segundo at Northrop Grumman. He is a very dynamic and intelligent gentleman. I hope he is well. Please pass my regards on to him. Please also tell him that i recently spoke with Craig Hutzler who was one of your uncle's deputies on the X-29 program. Pat

Tony Moors, 05.05.2011

Does anyone know that Grumman's Test Pilot< Chuck Sewell, was ordered to "return to base" when he felt the testing was too cautious and decided to put the plane thru some unauthorized meneuvers? He was confident the plane could easily handle a more rigorous program. Nasa/Air Force disagreed. I have a video of one of the flights.

Ron Senger, 20.09.2010

As a former Grumman employee I worked on both x-29 aircrafts designing cockpit design configuration and aircraft systems interface wiring. These two aircraft were the highlight of my 30 years with Grumman. Ron

Roger Busch, 18.08.2010

The X-29 flown by Chuck Sewell was an experimental aircraft used to validate the concept mentioned earlier. Less drag, more manuverability etc. The German had on in WWII but the wings always fell off due toharmonic vibrations. With new metal technoligies the X-29 validated the concept but was overshadowed by stealth.

Karl, 17.07.2010

Mr. Wollaston, the X-29 is purely an experimental aircraft. Thus, it does not carry any armament.

carl wollaston, 01.06.2010

this plane looks kind of it a cargo plane?IT DOES NOT HAVE ANY ARMAMENT.

patrick kuntz, 11.09.2009

hi peoplez
did you know the gijoe X-30 conquest
there are few differnts like 2 vertical sablizer next 2 engines differnt landing sturts I think.
if you don't belive me look up Gi Joe X-30 conquest

Leo Rudnicki, 16.06.2009

Rumor has it that the FSW concept resulted in an aircraft with a mach limit of M 1.6 before the wings twisted off (theoretically) and that the FSW S-37 is doomed as a viable combat aircraft. So it goes. Also, I find no listing of the Fairchild-Grumman T-46, one of those projects with spiralling cost overruns leading to an epic kerfuffle and a filibuster. Not as big a noise as Avenger II but noisy.

Ray, 17.03.2008

Hello George, My Uncle Bob McGuckin was one of many to invent the x-29. I would love to read anything you have about the x-29, and any pictures as well. Thank you look forward to hearing from you. Ray, 09.12.2006

As a former Grumman employee I was the Configuration Data Manager on the second X-29 aircraft. To my knowledge the first aircraft is now on display at the United States Airforce Museum in Dayton, Ohio.

At one point I received information stateing that the second aircraft had problems when being flown from Edwards Air Force Base to Dayton, Ohio. Is this true? George Foray

Do you have any comments about this aircraft ?

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