X-20 Dynasoar Credit - © Mark Wade

1966 Late. (Cancelled flight). Objectives of the second manned Dynasoar single-orbit flight were to demonstrate maneuver in orbit and during re-entry, and systems evaluation. Orbital attitude maneuvers would have been made to plus/minus 90 degrees in all axes, including visual reference checks. During re-entry control maneuvers would be made at pitch angles of from 10 to 50 degrees with a 3000 m altitude margin.

• - 1966 Late - Dynasoar 4 (cancelled)  Spacecraft: Dynasoar.

  Planned date for second manned Dynasoar single-orbit flight.

• Baker, David, The History of Manned Spaceflight, Crown, New York, 1981. The best overview of America's manned space programs up to Skylab. Information and details not available anywhere else. Unfortunately out of print and difficult to locate.

• 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.