STS33 Mission Patch. 32nd Space Shuttle Mission. 9th Flight of Discovery Crew:Frederick D. Gregory, CommanderJohn E. Blaha, PilotF. Story Musgrave, Mission SpecialistKathryn C. Thornton, Mission SpecialistManley L. Carter, Jr., Mission Specialist This was the fifth dedicated Department of Defense mission in the Space Shuttle program. Mission elements were kept secret.
STS51F Mission Patch. Primary objective of the Spacelab-2 mission was to verify the performance of Spacelab's systems and to determine its interface capability with the Space Shuttle vehicle. 4 inches. 19th Space Shuttle Mission8th Flight of Challenger Crew:C. Gordon Fullerton, CommanderRoy D. Bridges, Jr., PilotF. Story Musgrave, Mission SpecialistKarl G. Henize, Mission SpecialistAnthony W. England, Mission SpecialistLoren W. Acton, Payload SpecialistJohn-David F. Bartoe, Payload Specialist.