| Built By: | Vickers (Barrow) |
| Build Group: | C2 |
| Fate: | Scrapped in February 1920. |
| 1909: | Lieutenant | Robert Bertram Ramsay | |
| 1910: | Lieutenant | Geoffrey Nepean Biggs | |
| 1911: | Lieutenant | John Robert Guy Moncreiffe | |
| 1911: | Lieutenant | Roland Aubin Vavasor Durell | |
| 1911: | Lieutenant | Walter Edward Scott | |
| 1912: | Lieutenant | Henry Phillips Hughes |
1914: 7th Flotilla Chatham, HMS Vulcan and Alecto
| Length overall | 143 ft |
| Beam | 13 ft |
| Draught | 11.5 ft |
| Displacement | Surface 290 tons |
| Submerged 321 tons | |
| Diving Depth | 100 ft |
| Speed | Surface 13 knots (design) |
| Surface 13+ knots (service) | |
| Submerged 7.5+ knots (design) | |
| Submerged 8 knots (service) | |
| Machinery | 600 hp petrol engine |
| 200 hp electric motor | |
| Fuel | 15.5 tons (Petrol) |
| No. of shafts | 1 |
| Propeller | 3 blades, 5 ft 7 inch diameter |
| Armament | 2 x 18 inch bow torpedo tubes (4 torpedoes carried) |
| Endurance | Surface: 1300 miles at 9 knots (design) |
| Surface: 910 miles at full power (service) | |
| Submerged: 16 miles at 8 knots | |
| Complement | 2 x officers, 14 x ratings |
| Class: | 1914 - 1916: Swordfish Class |
| Built By: | Scotts (Clyde) |
| Build Group: | Sword |
| Fate: | |
| Scrapped in July 1922. | |
Of all the acts of gallantry in World War II few were as audacious as the attack by midget submarines on the pride of the German fleet, the battleship Tirpitz, lying in her fortified mooring in a Norwegian fjord.
Lieutenant Godfrey Place was in command of submarine X7 in September 1943 and travelled over 1000 miles, negotiating minefields and antisubmarine nets to accurately place four tons of high explosive under the hull of the Tirpitz.
13 pages added or updated in the last 1 month
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| Length overall | 143 ft |
| Beam | 13 ft |
| Draught | 11.5 ft |
| Displacement | Surface 290 tons |
| Submerged 321 tons | |
| Diving Depth | 100 ft |
| Speed | Surface 13 knots (design) |
| Surface 13+ knots (service) | |
| Submerged 7.5+ knots (design) | |
| Submerged 8 knots (service) | |
| Machinery | 600 hp petrol engine |
| 200 hp electric motor | |
| Fuel | 15.5 tons (Petrol) |
| No. of shafts | 1 |
| Propeller | 3 blades, 5 ft 7 inch diameter |
| Armament | 2 x 18 inch bow torpedo tubes (4 torpedoes carried) |
| Endurance | Surface: 1300 miles at 9 knots (design) |
| Surface: 910 miles at full power (service) | |
| Submerged: 16 miles at 8 knots | |
| Complement | 2 x officers, 14 x ratings |
| Class: | 1914 - 1916: Swordfish Class |
| Built By: | Scotts (Clyde) |
| Build Group: | Sword |
| Fate: | |
| Scrapped in July 1922. | |
Of all the acts of gallantry in World War II few were as audacious as the attack by midget submarines on the pride of the German fleet, the battleship Tirpitz, lying in her fortified mooring in a Norwegian fjord.
Lieutenant Godfrey Place was in command of submarine X7 in September 1943 and travelled over 1000 miles, negotiating minefields and antisubmarine nets to accurately place four tons of high explosive under the hull of the Tirpitz.
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.

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