Comment by downandout

Forgive me if this is a dumb question, as I have no experience with helicopters or scuba diving. But wouldn't it be easier and dramatically safer to just keep emergency scuba equipment onboard that might give you ~15 minutes or so of breathable air to give you time to deal with the situation? Full scuba tanks might be impractical, but something with a small supply of air probably wouldn't take up that much space.