Or, submarines going down but not coming up. Yewww! What an awful way to go. Hell, I sometimes thought we were a sub in the North Atlantic in 50’ seas on a destroyer escort.
Yeah I remember those seas on one fisheries patrol in January. On the mid-watch the Captain was being kept awake by a loose monkey's fist banging on the hull of his stateroom. As BMOW it was my task to secure it in a wet pitching deck.