Corvette K-225

****I checked with a military buff friend of mine to be sure, but the Corvette was the Canadian name for a ship that would be classified as a destroyer escort****

I certainly agree with your assessment of the movie, but I'm going to "split a hair or two" about how a Corvette compares to other navy ships.

Actually, a Corvette was quite a bit smaller than an American Destroyer Escort. Corvettes were about 1000 tons and had one engine and screw. DEs had twin screw propulsion and were 1500 tons or more.

A Destroyer Escort was closer to what the Royal Canadian Navy called a Frigate, which was larger and had twin screws. A typical smallish convoy would have a Frigate and 4 Corvettes as its navy escort.

My dad served in the RCN doing convoy duty on HMCS Arnprior, a castle-class Corvette. He always felt that the depiction of a Corvette rolling in heavy seas as shown in the movie was spot on. The RCN joke was that "a Corvette would roll on wet grass".