EVA Systems Patch
$9.95
STS-121 Mission Patch
$9.95
STS-41B Mission Patch
MP41B
$9.95
10th Space Shuttle Mission
4th Flight of Challenger Crew:
Vance D. Brand, Commander
Robert L. Gibson, Pilot
Bruce McCandless II, Mission Specialist
Ronald E. McNair, Mission Specialist
Robert L. Stewart, Mission Specialist
The mission featured the first untethered spacewalks, which were performed by astronauts McCandless and Stewart using Manned Maneuvering Units (MMU). WESTAR-VI and PALAPA-B2 satellites were deployed, but failure of the PAM-D rocket motors left them in improper low-earth orbits.
