Astronaut Russell Schweickart wears EMU and PLSS for countdown test
Astronaut Russell L. Schweickart, lunar module pilot of the Apollo 9 prime crew, wears the extravehicular mobility unit (EMU) which he will use during his scheduled Apollo 9 extravehicular activity. In addition to the space suit and bubble helmet, the EMU also includes a portable life support system (PLSS) back pack, an Oxygen Purge System (seen atop the PLSS), and a Remote Control Unit on his chest. When this photograph was taken, Schweickart was suited up to participate in an Apollo 9 Countdown Demonstration Test.
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