Transcription: Several weeks before the launch, we did what was known as a countdown demonstration test. We got in the spacecraft, the crew got there, all the other people got there, the controllers. We counted the spacecraft and rocket down to zero, but we did not launch. Just to make sure that everything was all set to go, everybody knew what they were supposed to do, all the consumables except the fuel in the rocket itself wasn't put in. But the oxygen in these tanks was put in. After the test was completed and everything did work perfectly for the flight, the ground crew went in to remove the oxygen from ...
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