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| | Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal (Site not responding. Last check: 2007-10-15) |
 | | The U.S. Air Force, which was planning to use the Gemini spacecraft as part of the Manned Orbiting Laboratory, designed the Astronaut Maneuvering Unit (AMU), which was a backpack, using hydrogen peroxide as the fuel. |
 | | The AMU was flown aboard the Gemini 9 mission, but was not tested because the astronaut, Eugene Cernan, had difficulty maneuvering from the Gemini cabin to the AMU storage place, at the back of the spacecraft, and overheated, causing his helmet faceplate to fog up. |
 | | The Skylab AMU was the closest to the Shuttle MMU, but was not used outside of the spacecraft because the EVAs were conducted with the astronauts attached to life support umbilicals, and to prevent damage to the delicate solar arrays on the Apollo Telescope Mount. |
| www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Manned_Maneuvering_Unit (1315 words) |
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