Events

1914	E10	Completed
1940	P222	Laid Down
1942	Utmost (N19)	HMS Utmost fires four torpedoes against the Italian merchant Siculo off Marettimo but miss the target.
1942	P555	Transferred to the UK
1943	Upas (P92)	Laid Down
1944	Unswerving (P63)	HMS Unswerving attacks the small German merchant Toni with four torpedoes off Milos, Greece. All torpedoes miss.

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The History Of The Boatswain Call	Read
The boatswain's pipe is one of the oldest and most distinctive pieces of personal nautical equipment and was once the only method other than human voice of passing orders to men on board ship.