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Mercury to Apollo: The Hardware of Early Spaceflight
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What was the cabin atmosphere composition of the Apollo 1 Command Module during the fateful plugs-out ground test on January 27, 1967?
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⚖️
50-50
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Audience
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A
100% pure oxygen at 16.7 psi
B
100% pure oxygen at 5.0 psi
C
60% oxygen and 40% nitrogen at 14.7 psi
D
78% nitrogen and 21% oxygen at 14.7 psi
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