In the surface emergency sequence, when one astronaut's portable life support system fails, he activates his OPS (Oxygen Purge System), i.e., emergency oxygen supply. But he fails to open the purge valve that lets the oxygen flow through and out of his suit. The valve is unlocked by pulling a pin attached to the red ball ("red apple") hanging from the lower right front of the suit.
Scritto da il
05/03/2025 alle ore 08:50