Air pressure on flight deck
Has anyone considered what the dynamic pressure might be like in the cockpit with the door closed and one or more windshield panels missing.
Air flow past the missing panel might result in a lowering of pressure inside the cockpit (ref venturi / Bernoulli) OR there could be some ram effect.
I can well imagine that the environment would be extremely turbulent and debilitating (deadly) but not so sure that you'd be in a low pressure environment or that O2 partial pressure would be a problem in itself.