Manned Maneuvering Unit, Manned Maneuvering Unit - AMU, Manned Maneuvering Unit - History, Manned Maneuvering Unit - Overview, Manned Maneuvering Unit - Related astronaut propulsion units, Manned Maneuvering Unit - Russian SPK, Manned Maneuvering Unit - SAFER, Manned Maneuvering Unit - Zip gun
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The unit featured redundancy to protect against failure of individual systems. It was designed to fit over the life-support system backpack of the Space Shuttle Extravehicular Mobility Unit (EMU). When carried into space, the MMU was stowed in a support station attached to the wall of the payload bay near the airlock hatch. Two MMUs were carried on a mission, with the second unit mounted across from the first on the opposite payload bay wall. The MMU controller arms were folded for storage. When an astronaut backed into the unit and snapped the lif ...
The MMU was used on three Shuttle missions in 1984. It was first tested on February 7 during mission STS-41-B by astronauts Bruce McCandless and Robert L. Stewart. Two months later during mission STS-41-C, astronauts James van Hoften and George Nelson used the MMU to capture the Solar Maximum mission satellite and to bring it into the orbiter's payload bay for repairs and servicing. Their work increased the lifespan of the satellite.
The final MMU mission was STS-51-A, which flew in November of 1984. The propulsion unit was used to re ...
