Martin Marietta X-24

X-24
The X-24B in flight
General information
TypeLifting body
National originUnited States
ManufacturerMartin Marietta
Primary usersUnited States Air Force
Number built1 (X-24A, rebuilt as X-24B)
History
First flight
  • 17 April 1969 (X-24A)
  • 1 August 1973 (X-24B)
Retired26 November 1975
Developed fromX-23 PRIME

The Martin Marietta X-24 is an American experimental aircraft developed from a joint United States Air Force-NASA program named PILOT (1963–1975). It was designed and built to test lifting body concepts, experimenting with the concept of unpowered reentry and landing, later used by the Space Shuttle.[1] Originally built as the X-24A, the aircraft was later rebuilt as the X-24B.

The X-24 was drop launched from a modified B-52 Stratofortress at high altitudes before igniting its rocket engine; after expending its rocket fuel, the pilot would glide the X-24 to an unpowered landing.[2][3]

  1. ^ Reed, R. Dale; Darlene Lister (2002). Wingless Flight: The Lifting Body Story. University Press of Kentucky. ISBN 0-8131-9026-6. also available as a PDF file.
  2. ^ "MARTIN X-24B". National Museum of the US Air Force. August 26, 2009. Archived from the original on December 16, 2013. Retrieved July 15, 2017.
  3. ^ "X-24B launch – air drop from mothership". Dryden Flight Research Center. Archived from the original on October 6, 1999. Retrieved March 25, 2013.