I remember seeing this scene in a bar in Amsterdam. ( I lived over the bar, handy.)
It was a trailer for the movie but at first we thought it was on because the trailer went on for so long.
We didn't know what we were watching and when Arnie sits up again after being blasted we were ''what's going on here?''
We said we're definitely going to see this and we did a couple of times. A classic.
This takes me back to my late teens at sea in weather like this.
In similar ships, a minesweeper not much bigger than the trawler and similar patrol vessels.
Loved it.