STS-41-B/Westar VI/IRT/Palapa B2/SPAS-01

STS-41-B was a mission that deployed 2 communications satellite and 1 target satellite. The satellites all failed because of a reason: Both communications satellites have defective (failing) parts on their PAM-Ds which made the solid motor cut off mid-flight and the target satellite exploded minutes after deployment. The communications satellites were recovered at STS-51-A. It also introduced a new numbering system that stayed until the Challenger Disaster. The MMU was tested in this flight. The Manipulator Foot Restraint was also tested in this flight. The mission was a rehearsal of the later mission, STS-41-C, which will deploy the LDEF and then rendezvous with Solar Max, Repair Solar Max and then redeploy it. SPAS-01 made a comeback in this mission but it stayed on the cargo bay this time because of an electrical issue with Canadarm. Sorry for the Manipulator Foot Restraint Exit Position being wrong if you were out of the shuttle after exiting the chair of the Manipulator Foot Restraint. To fix the problem of the MMU being in control instead of the shuttle after resuming it's flight, just undock the MMU (adjust position if it changes), then wait until it redocks on its own. (Make sure you are controlling the shuttle, not the MMU) Before launch, Rotate the interstage connecting the PAM-D and Westar VI 180° from the original angle. Before you deploy the MMU with a drood, make sure to extend it's arms (AG 2, Input: Slider 1) and after you come back to the Flight Support Station, retract the arms before making the astronaut exit the MMU.