I thought that you might be interested in the following from my uncle's memoirs
< I was in the Steam Gunboat (SGB) for twelve months, during which time we were engaged in a couple of skirmishes across the Channel, but the most exciting time was the day of the landing at Dieppe in August 1942.
The SGB's in our flotilla were later given names like "Grey Goose", etc, but when I joined they only had numbers; we were 303 and our captain was the flotilla leader.
Unfortunately, just prior to the landing, our ship was having engine trouble but our captain did not want us to miss any of the action, so about a dozen of us and all the officers joined another SGB, double banking the crew. The CO of this SGB was Peter Scott, the naturalist. >