| 1909 | C 21 (I 51) | Completed |
| 1915 | E 11 (I 91) | E11, commanded by Lt-Cmdr Martin Nasmith passed through the Dardanelles during the night. Surfacing off the town of Gallipoli, Nasmith captured a Turkish sailing vessel and lashed it to the conning tower to act as a disguise. This ruse failed to attract any targets, so after several days he abandoned it. |
| 1916 | E 39 | Launched |
| 1916 | J 5 | Completed |
| 1916 | L 1 | Laid Down |
| 1916 | L 2 | Laid Down |
| 1938 | Adamant (F64) 1940 - 1970 | Laid down |
| 1941 | Tetrarch (N 77) | HMS Tetrarch torpedoes and sinks the Italian merchant Giovinezza off Bengasi, Libya. |
| 1942 | Turbulent (N 98) | HMS Turbulent torpedoes and sinks the Italian merchant Bolsena west of Bengasi, Libya. |
| 1943 | Storm (P 233) | Launched |
| 1945 | Sea Dog (P 216) | HMS Seadog torpedoes and sinks a Japanese coaster north of Sumatra, Netherlands East Indies. |
| Class: | 1930 - 1946: Grampus Class |
| Built By: | Vickers (Barrow) |
| Build Group: | G2 |
| Fate: | |
| Possibly sunk off Penang by Japanese A/S aircraft on or about 11th January 1945. On 3rd January 1945 the Submarine left Trincomalee in Ceylon (now Sri Lanka) for her 23rd War Patrol (4th in the Far East) with orders to lay a minefield off Penang. On 9th Jan 1945, Lt. Cdr. H B Turner, DSC is understood to have reported by signal that he had successfully laid her mines off Penang. On 13th January 1945, HMS Stygian was sent a signal informing her that Porpoise was in trouble 17 miles northwest of Pulo Perak). This information came from an Ultra decrypt (now in the National Archives in London) reporting that on 11th January a Nakajima B6N2 bomber had attacked a Submarine, dropping two 60kg bombs. Further bombing attacks we made later but there was no further contact. Japanese records show that a submarine was spotted and bombed by aircraft in the vicinity of Penang. Although not destroyed in this attack, the submarine was wounded and leaking oil that left a trail for the Japanese anti-submarine forces to follow as they closed in for the kill. HMS Porpoise was later declared overdue and then as lost with all hands. | |
An insight into the design, construction and operation of the feared World War 2 German Type VIIC U-boat
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| Class: | 1930 - 1946: Grampus Class |
| Built By: | Vickers (Barrow) |
| Build Group: | G2 |
| Fate: | |
| Possibly sunk off Penang by Japanese A/S aircraft on or about 11th January 1945. On 3rd January 1945 the Submarine left Trincomalee in Ceylon (now Sri Lanka) for her 23rd War Patrol (4th in the Far East) with orders to lay a minefield off Penang. On 9th Jan 1945, Lt. Cdr. H B Turner, DSC is understood to have reported by signal that he had successfully laid her mines off Penang. On 13th January 1945, HMS Stygian was sent a signal informing her that Porpoise was in trouble 17 miles northwest of Pulo Perak). This information came from an Ultra decrypt (now in the National Archives in London) reporting that on 11th January a Nakajima B6N2 bomber had attacked a Submarine, dropping two 60kg bombs. Further bombing attacks we made later but there was no further contact. Japanese records show that a submarine was spotted and bombed by aircraft in the vicinity of Penang. Although not destroyed in this attack, the submarine was wounded and leaking oil that left a trail for the Japanese anti-submarine forces to follow as they closed in for the kill. HMS Porpoise was later declared overdue and then as lost with all hands. | |
An insight into the design, construction and operation of the feared World War 2 German Type VIIC U-boat
13 pages added or updated in the last 1 month
Please help to maintain this site by reporting any Errors, Broken Links, Information or Site Issues on this page using this button
If you find this site useful, please consider supporting my work with a small Donation.
Please Note: Donations made using this option go directly to the site owner and not to the Submariners Association.
Thankyou for your support.