| Built By: | Armstrong Whitworth (Tyne) |
| Build Group: | G |
| Fate: | Sold 4th November 1921 |
11th Flotilla. Blyth.
| Length overall | 187 ft 1 inch |
| Beam | 15 ft 4 inch |
| Depth | 16 ft 7 inch |
| Displacement | 703 tons (surface) |
| 837 tons (submerged) | |
| Diving Depth | 200 ft |
| Speed | Surface 15.5 knots (design) |
| Surface 14 knots (service) | |
| Submerged 9.5 to 10 knots (design) | |
| Submerged 9 knots (service) | |
| No. of shafts | 2 |
| Propeller | 3 blades, 5 ft 8 inch diameter |
| Armament | 2 x 18 inch bow tubes |
| 2 x 18 inch beam tubes | |
| 1 21 inch stern tube | |
| (10 torpedoes carried) | |
| 1 x 2-pounder gun | |
| Endurance | Surface: 2600 miles at 12.5 knots (design) |
| Surface: 1650 miles at full power (service) | |
| Submerged: 99 miles at 3 knots (design) | |
| Submerged: 95 miles at 3 knots (service) | |
| Complement | 3 Officers and 28 ratings |
Thorn (N 11) |
|
| Class: | 1935 - 1970: T Class |
| Built By: | |
| Build Group: | T 2 |
|
Fate: Believed to have been sunk 'With All Hands' on 6th August 1942 after an attack on an Italian convoy in the Mediterranean in position 34°25'N, 22°36'E. A Ju-88 aircraft had been seen to make a machine-gun attack ahead of the convoy. The Italian torpedo boat Pegaso then detected a contact and carried out a series of depth charge attacks. After seven attacks, a large air bubble was seen, as was a large oil slick. HMS Thorn had been expected to arrive at Beirut but was declared overdue on 11th August 1942 when she did not arrive. |
|
Provides a full description of the A Class Royal Navy Submarine Alliance, with particulars of the A Class, with photos & technical diagrams.
20 pages added or updated in the last 2 month
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| Length overall | 187 ft 1 inch |
| Beam | 15 ft 4 inch |
| Depth | 16 ft 7 inch |
| Displacement | 703 tons (surface) |
| 837 tons (submerged) | |
| Diving Depth | 200 ft |
| Speed | Surface 15.5 knots (design) |
| Surface 14 knots (service) | |
| Submerged 9.5 to 10 knots (design) | |
| Submerged 9 knots (service) | |
| No. of shafts | 2 |
| Propeller | 3 blades, 5 ft 8 inch diameter |
| Armament | 2 x 18 inch bow tubes |
| 2 x 18 inch beam tubes | |
| 1 21 inch stern tube | |
| (10 torpedoes carried) | |
| 1 x 2-pounder gun | |
| Endurance | Surface: 2600 miles at 12.5 knots (design) |
| Surface: 1650 miles at full power (service) | |
| Submerged: 99 miles at 3 knots (design) | |
| Submerged: 95 miles at 3 knots (service) | |
| Complement | 3 Officers and 28 ratings |
Thorn (N 11) |
|
| Class: | 1935 - 1970: T Class |
| Built By: | |
| Build Group: | T 2 |
|
Fate: Believed to have been sunk 'With All Hands' on 6th August 1942 after an attack on an Italian convoy in the Mediterranean in position 34°25'N, 22°36'E. A Ju-88 aircraft had been seen to make a machine-gun attack ahead of the convoy. The Italian torpedo boat Pegaso then detected a contact and carried out a series of depth charge attacks. After seven attacks, a large air bubble was seen, as was a large oil slick. HMS Thorn had been expected to arrive at Beirut but was declared overdue on 11th August 1942 when she did not arrive. |
|
Provides a full description of the A Class Royal Navy Submarine Alliance, with particulars of the A Class, with photos & technical diagrams.
20 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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