1967 Summer. (Cancelled flight). Objectives of the fifth manned Dynasoar single-orbit flight were to demonstrate reuse of a minimally-refurbished spacecraft flown on an earlier mission. On orbit use of visual references to control attitude and tests of control and navigation systems would be conducted. During re-entry performance, dynamic stability, and aerothermal maneuver using the reused glider would be checked.

• - 1967 Summer - Dynasoar 7 (cancelled)  Spacecraft: Dynasoar.

  Planned date for fifth manned flight of the X-20 Dynasoar.

• Godwin, Robert, editor, Dyna-Soar: Hypersonic Strategic Weapons System, Collector's Guide Publishing, Ontario, Canada, 2003.. ISBN: 1896522955. Collection of contemporary documents covering the development and death of Dyna-Soar, as well as a DVD with video of promotional films and systems tests. More at amazon.com...

• Houchin II, Roy and Smith, Terry, Quest, "X-20 (7 articles)", 1994, Volume 3, Issue 4, page 4.