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7

The outer door of the airlock should open inwards against the air pressure. But opening the door against the huge force of the pressure to the large area of the door is impossible. If the door is opening with the air pressure, a manual or motorized unlocking would be possible only at a very low pressure inside the airlock. Opening of the door locks at ...


35

I did a quick extrapolation from Organic Marble's data (1.5" diameter hole = lose 1500 lbs of air per hour from 14.7 psi; flowrate proportional to the square root of the pressure differential) and my estimate of the hangar and hatch size in the scene (40x40x10m hangar; 3m square hatch). There's a lot of uncertainty here and the large opening might not ...


24

As much as I love this movie, it's not very realistic. Here are some cabin leak numbers for the shuttle Orbiter. At an initial 14.7 psi cabin atmosphere, a 1.5 inch diameter round hole was projected to give an initial leak flowrate of greater than 1500 lbm / hour. That would have been catastrophic for the shuttle with the cabin pressure dropping initially ...


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