10th Space Shuttle Mission4th Flight of Challenger Crew:Vance D. Brand, CommanderRobert L. Gibson, PilotBruce McCandless II, Mission SpecialistRonald E. McNair, Mission SpecialistRobert 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.
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STS-41B Mission Patch

  • Product Code: MP41B
  • Availability: In Stock
  • Price $6.95