HMS Venturer (P68), A British V-class submarine,
The only submarine (publicly known) to have sunk another submarine while both were underwater. A fascinating short story, it sank U-864 in early 1945 which was carrying advanced technology to Japan.
Length: 206', Beam: 16', Displacement: 545 tons (surface), 740 tons submerged
4x21" bow torpedo tubes
Commissioned: 1943 Sold to Norway: 1945 Scrapped: 1964.
https://defenceoftherealm.wordpress...water-submarine-to-submarine-kill-in-history/
The only submarine (publicly known) to have sunk another submarine while both were underwater. A fascinating short story, it sank U-864 in early 1945 which was carrying advanced technology to Japan.
Length: 206', Beam: 16', Displacement: 545 tons (surface), 740 tons submerged
4x21" bow torpedo tubes
Commissioned: 1943 Sold to Norway: 1945 Scrapped: 1964.
https://defenceoftherealm.wordpress...water-submarine-to-submarine-kill-in-history/