Comments by "John Burns" (@johnburns4017) on "Last War Patrol of HMS Terrapin" video.

Thetis sunk in Liverpool Bay with the stern above water, near vertical. 99 died in teh sub. In hindsight they could have all been saved. A few did get out. I new man who was in teh tug that stood above her at all time until she was doomed. HMS Thetis, salvaged and renamed Thunderbolt was the only submarine ever to have sunk twice.
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@steeltrap3800 The British subs were too big for the Med. The U class was built, which was excellent. HMS Upholder sank one destroyer, two submarines, nine supply ships, including three large troop transports. Total tonnage sunk was 93031 GRT. She also shelled a road viaduct in Italy. On 12 April 1942, in the Med, HMS Upholder went to intercept a convoy, failing to return. The cause of the loss is unknown to this day.
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