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23 Ιαν 2017 · Just seconds after a spark ignited inside the capsule, a conflagration burned hotter than 1,000 degrees Fahrenheit. As materials inside the spacecraft were incinerated, they gave off toxic fumes ...
Although the new cabin launch atmosphere was significantly safer than 100% oxygen, it still contained almost three times the amount of oxygen present in ordinary sea-level air (20.9% oxygen). This was necessary to ensure a sufficient partial pressure of oxygen when the astronauts removed their helmets after reaching orbit.
19 Ιουλ 2019 · For the Apollo astronauts the time when breathing pure oxygen at a pressure above 0.5 bar was limited to a few hours. But to reduce the probability of decompression sickness extended prebreathing of pure oxygen over 3 to 4 hours is helpful.
25 Ιουν 2016 · The Apollo 1 accident investigation prompted NASA to revisit the spacecraft’s pure oxygen environment, the benefits of the simpler and lighter single gas system and a low density flight ...
3 Φεβ 2022 · As they would on launch day, the astronauts and ground crews sealed the three hatches of the capsule and pressurized it with pure oxygen at 16.7 pounds per square inch (psi), slightly higher than atmospheric pressure. At 6:31 p.m., a flash fire broke out inside the cabin.
13 Απρ 2019 · It was pressurized oxygen on the launch pad that was the problem. To mimic the pressure differential of 5psi inside the cabin against the vacuum of space, the spacecraft had to be pressurized with 16psi at sea level. That played a big part in the Apollo 1 fire.
1 Φεβ 2008 · This year marks the 41st anniversary of the Apollo 1 tragedy, when NASA lost three of its finest astronauts to a horrific cockpit fire. On January 27th, 1967, the Apollo 1 crew entered the spacecraft to perform a launch countdown rehearsal test. The test commenced with installing the hatch.
