If the freefall is 3 hrs and the sub lost contact at 1 HR 45 min or so, then it had its problem roughly halfway down?
Correct. If they lost total power, which seems likely, then they had no control for the electric motors or steering, and therefore would be drifting with the currents. That sub could be anywhere by now........................
Correct. If they lost total power, which seems likely, then they had no control for the electric motors or steering, and therefore would be drifting with the currents. That sub could be anywhere by now........................