What submarine is Thomas singing about?

What submarine, and in what event, is Thomas Dolby singing about in One Of Our Submarines? My grasp of world history is tenuous at best, so while I can enjoy it for being simply a good song, it nags at me that I don’t know what he’s on about.

It’s family history – no idea what specific sub he’s on about, apart from that it’s the one his mother’s brother served on during WWII. He didn’t come home.

Managed to find this link : http://www.cdbaby.com/cd/dolbyautograph2 .

Running a Google search with the song title and the word Uncle provided bunches of hits, all of which said the same thing.

One interpretation

Well, if it’s a US sub he’s talking about, he’s got quite a list to chose inspiration from…

D>