How easy is it to disconnect and remove the helmet of a space suit? More specifically...
- How long does it take for one to remove his own helmet?
- Would it be feasible for somebody to remove another's helmet in a relatively quick manner?
- Would it be possible for somebody in vacuum to reattach his own helmet if it were removed?
I am aware that there are a variety of space suits, and I am under the impression that some EVA suits are more of a hard shell without a separately removable helmet. On that point, I welcome answers relating to any and every variety of suit you are familiar with.