Aircraft 66-13551 Data

66-13551
1972 Martin Marietta X-24B, c/n 2
Latest photos of 66-13551
66-13551 @ KFFO - At the Museum of the United States Air Force Dayton Ohio. - by kenvidkid
kenvidkid
@ KFFO
66-13551 @ KFFO - X-24A - by Florida Metal
Florida Metal
@ KFFO
66-13551 @ DWF - Shot from the upper deck of the new building at the Air Force Museum - by Glenn E. Chatfield
Glenn E. Chatfield
@ DWF
66-13551 @ FFO - X-24B - by Florida Metal
Florida Metal
@ FFO
Airframe Info
Manufacturer Martin Marietta
Model X-24B Search all Martin Marietta X-24B
Year built 1972
Construction Number (C/N) 2
Number of Seats 1
Number of Engines 3
Engine Type Unknown
Engine Manufacturer and Model Thiokol XLR11-RM-13 & 2 rockets
Aircraft
Registration Number 66-13551
Current Status Preserved
Owner
Owner National Museum of the United States Air Force
Address , Dayton, OH
United States
User Comments
Helicopterfriend, 2025-08-06 16:40:24
The Air Force returned the X-24A to the Martin Marietta Corporation — as Martin Aircraft Company became after a merger — for modifications that converted its bulbous shape into one resembling a "flying flatiron", i.e., rounded top, flat bottom, and a double delta platform that ended in a pointed nose.
Glenn E. Chatfield, 2007-11-23 05:00:00
In addition to the main Thiokol XLR11-RM-13 engine, the X-24B was powered by two 500 lb. th. hydrogen peroxide rockets.
66-13551
Martin Marietta X-24A (SV-5J), c/n 2
Latest photos of 66-13551
66-13551 @ KFFO - National Museum of the USAF - by planestuff
planestuff
@ KFFO
66-13551 @ KFFO - X-24A zx - by Florida Metal
Florida Metal
@ KFFO
66-13551 @ KFFO - At the Museum of the United States Air Force Dayton Ohio. - by kenvidkid
kenvidkid
@ KFFO
66-13551 @ DWF - SV-5J modified to look like an X-24A. Development aircraft for the X-24 program. Located now at the National Museum of the U.S. Air Force. S/N is bogus - by Glenn E. Chatfield
Glenn E. Chatfield
@ DWF
Airframe Info
Manufacturer Martin Marietta
Model X-24A (SV-5J) Search all Martin Marietta X-24A (SV-5J)
Construction Number (C/N) 2
Aircraft Type Fixed wing single engine
Number of Seats 1
Number of Engines 1
Engine Type Turbojet
Engine Manufacturer and Model Pratt & Whitney J60
Aircraft
Registration Number 66-13551
Current Status Preserved
Owner
Owner National Museum of the United States Air Force
Address ,
United States
User Comments
Glenn E. Chatfield, 2017-05-04 09:38:52
From Wikipedia:
After learning about a remark by Chuck Yeager, that he would like to have some jet-powered lifting bodies for training purposes, Martin designed and built, on their own initiative, two examples of the SV-5J.[1]
The SV-5J was a jet-powered version of the rocket-powered X-24A. The SV-5J had identical dimensions to the X-24A, but was powered by a single Pratt & Whitney J60-PW-1 jet engine of 1360 kgf, in place of the X-24A's Reaction Motors XLR-11-RM-13 rocket engine. Martin also manufactured a full-scale, unflyable, mock-up of the SV-5J. (Confusion over number built may be due to the mock-up being included in the production list.)
Martin were unable to convince Milt Thompson to fly the SV-5J, even after offering a $20,000 bonus. Both examples remained unflown.
As the original X-24A was converted to X-24B, one of the SV-5Js eventually was converted to represent the X-24A, for display at the National Museum of the United States Air Force, Wright-Patterson AFB, Ohio, besides the original X-24B.

See also the NMUSAF info page about this aircraft.
http://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/195755/martin%E2%80%90x%E2%80%90 24a/