What happened to astronauts ED white, Virgil grisson and roger chaffee?
They died in a tragic training accident, the result of many small errors, chained together. You can legally say, they got killed by NASA and North American, because the actions they did called for a fire. But still, it is also a tragic accident, which happened by pure chance. The scenario: The three astronauts do one kind of test, called plugs-out test. The spacecraft is practically completely ready for launch and running on internal power, except it lacks fuel, high pressure gases and pyrotechnics. All connections remaining to the pad are exactly the same connections which would be there during launch – no special test cables or open doors. This test also got combined with a test of the cabin integrity. For simulating the pressure difference in Orbit, the capsule got filled with a 1.2 bar pure oxygen atmosphere, 20% higher pressure as outside. Normally in the atmosphere, there is 20% oxygen and over 70% nitrogen. For saving mass in the spacecraft, they decided to do it without the nit
