| Built By: | Denny (Leven) |
| Build Group: | E3 |
| Fate: | Sold 6th September 1922 |
| 1916: | Lieutenant Commander | Gilbert H Kellett | |
| 1916: | Lieutenant | F J H Dawson | |
| 1917: | Lieutenant | James Lawrence Boyd | DSC |
| 1919: | Lieutenant | C Mereweather |
| Length overall | 181 ft |
| Beam | 15 ft |
| Displacement | 667 tons (surface) |
| 807 tons (submerged) | |
| Diving Depth | 200 ft |
| Speed | Surface 15.25 knots (design) |
| Surface: 1500 miles on full power or 3000 miles at 10 knots (service) | |
| Submerged: 99 miles at 3 knots (design) | |
| Submerged: 10 miles at 9 knots or 65 miles at 5 knots (service) | |
| No. of shafts | 2 |
| Propeller | 3 blades, 5 ft 7 inch diameter |
| Armament | 2 x 18 inch bow tubes |
| 2 x 18 inch beam tubes | |
| 1 x 18 inch stern tube | |
| (10 torpedoes carried) | |
| 1 x 2-pounder gun | |
| Endurance | Surface: 3000 miles at 10 knots (design) |
| Surface: 1500 miles on full power or 3000 miles at 10 knots (service) | |
| Submerged: 99 miles at 3 knots (design) | |
| Submerged: 10 miles at 9 knots or 65 miles at 5 knots (service) | |
| Complement | 3 Officers, 28 Ratings. |
| Class: | 1936 - 1958: U Class |
| Built By: | Vickers (Barrow) |
| Build Group: | U1 |
| Fate: | |
| Returned to the UK for refit. On completion did a short period in UK waters before returning to the Mediterranean. On 10th October 1942 Submarine HMS Unique was on passage from UK to Gibraltar and had been ordered to conduct a patrol off North Spain on the way to intercept any possible 'blockade runners'. Submarine HMS Ursula which had similar orders heard sounds of explosions whilst crossing the Bay of Biscay and assumed that Submarine HMS Unique was being attacked. No claim for an attack was made but it was assumed that the Submarine was lost with all hands after the attack. | |
The story of the Thetis Submarine Tragedy in 1939, is the definitive account of the whole sorry episode of the Birkenhead built vessel that cost 99 lives; still today the worst submarine disaster in British History.
13 pages added or updated in the last 2 month
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| Length overall | 181 ft |
| Beam | 15 ft |
| Displacement | 667 tons (surface) |
| 807 tons (submerged) | |
| Diving Depth | 200 ft |
| Speed | Surface 15.25 knots (design) |
| Surface: 1500 miles on full power or 3000 miles at 10 knots (service) | |
| Submerged: 99 miles at 3 knots (design) | |
| Submerged: 10 miles at 9 knots or 65 miles at 5 knots (service) | |
| No. of shafts | 2 |
| Propeller | 3 blades, 5 ft 7 inch diameter |
| Armament | 2 x 18 inch bow tubes |
| 2 x 18 inch beam tubes | |
| 1 x 18 inch stern tube | |
| (10 torpedoes carried) | |
| 1 x 2-pounder gun | |
| Endurance | Surface: 3000 miles at 10 knots (design) |
| Surface: 1500 miles on full power or 3000 miles at 10 knots (service) | |
| Submerged: 99 miles at 3 knots (design) | |
| Submerged: 10 miles at 9 knots or 65 miles at 5 knots (service) | |
| Complement | 3 Officers, 28 Ratings. |
| Class: | 1936 - 1958: U Class |
| Built By: | Vickers (Barrow) |
| Build Group: | U1 |
| Fate: | |
| Returned to the UK for refit. On completion did a short period in UK waters before returning to the Mediterranean. On 10th October 1942 Submarine HMS Unique was on passage from UK to Gibraltar and had been ordered to conduct a patrol off North Spain on the way to intercept any possible 'blockade runners'. Submarine HMS Ursula which had similar orders heard sounds of explosions whilst crossing the Bay of Biscay and assumed that Submarine HMS Unique was being attacked. No claim for an attack was made but it was assumed that the Submarine was lost with all hands after the attack. | |
The story of the Thetis Submarine Tragedy in 1939, is the definitive account of the whole sorry episode of the Birkenhead built vessel that cost 99 lives; still today the worst submarine disaster in British History.
13 pages added or updated in the last 2 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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