What gas mixture was used in the Apollo 1 Command Module during the launch rehearsal fire?
Answer
100% pure oxygen
The spacecraft cabin was pressurized with 100% pure oxygen at a higher pressure than operational conditions during the test, creating an environment where any spark could instantly propagate fire.
Related Questions
What gas mixture was used in the Apollo 1 Command Module during the launch rehearsal fire?What mechanical feature of the Apollo 1 spacecraft proved lethally difficult to operate during the fire?What specific component failure caused the catastrophic incident during the Apollo 13 mission?Which module was adapted to sustain the three Apollo 13 astronauts for their return journey after the explosion?What condition of Oxygen Tank No. 2 prior to Apollo 13 ultimately led to the sparking insulation and explosion?What essential engineering principle linked the Apollo 1 failure to the need for later redesigns?What innovative solution did Mission Control devise to manage carbon dioxide buildup for the Apollo 13 crew?What event immediately threatened the Apollo 12 mission shortly after liftoff?What did the Apollo 1 disaster lead to regarding the Command Module's safety design?What factor is suggested to have influenced design conservatism clashing with timelines in the Apollo program?What did evidence suggest was a common occurrence across *each* moon-based Apollo mission?