| Built By: | Armstrong Whitworth (Tyne) |
| Build Group: | M |
| Fate: | Work was suspended at the time of the Armistces of WWI and cancelled shortly afterwards on 28/11/1918. Boat was launched in 1919 to clear slipway. |
| 1943: | Percy Edgar Martin (RNR) | ||
| 1944: | Acting Lieutenant Commander | Brian Raleigh Pedrette (RNVR) |
Started life as K21
| 01-12-1916 | Laid Down |
| 20-07-1919 | Launched |
| Length overall | 295 ft 9 inch |
| Beam | 24 ft 8 inch |
| Depth | 18 ft 8 inch |
| Displacement | 1594 tons (surface) |
| 1946 tons (submerged) | |
| Diving Depth | 200 ft |
| Speed | Surface 16 knots (design) 10 (service) |
| Submerged 10 (design) 8 to 9 knots (service) | |
| No. of shafts | 2 |
| Propeller | 3 blades, 5 ft 10 inch diameter |
| Armament | (i) 4 x 18 inch bow tubes (8 torpedoes carried) |
| 1 x 12 inch gun | |
| 1 x 3 inch gun | |
| Endurance | Surface: 2500 miles at 16 knots (design) 2000 miles at full power or 4500 miles max (service) / Submerged: 10 miles at 10 knots (design) 9 miles at 8+ knots (service) |
| Complement | 6 Officers and 62 Ratings |
| Note | (i) In M3 these were replaced by four 21 inch bow tubes, which were responsible for an overall increase in length of 10 ft |
Further Reading |
|
| M-class Submarines |
Martin H. Brice |
| Class: | 1925 - 1946: Odin Class |
| Built By: | Beardmore (Clyde) |
| Build Group: | O2 |
| Fate: | |
| HMS Orpheus was declared overdue on 27th June 1940. The likely cause of her loss with all hands is that she was mined off Benghazi. | |
The definitive reference guide to tracing your family history. Covering all access levels, from the new beginner to the more experienced researcher, the Encyclopaedia of Genealogy is a comprehensive master class in solving the mysteries of your personal heritage.
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| Length overall | 295 ft 9 inch |
| Beam | 24 ft 8 inch |
| Depth | 18 ft 8 inch |
| Displacement | 1594 tons (surface) |
| 1946 tons (submerged) | |
| Diving Depth | 200 ft |
| Speed | Surface 16 knots (design) 10 (service) |
| Submerged 10 (design) 8 to 9 knots (service) | |
| No. of shafts | 2 |
| Propeller | 3 blades, 5 ft 10 inch diameter |
| Armament | (i) 4 x 18 inch bow tubes (8 torpedoes carried) |
| 1 x 12 inch gun | |
| 1 x 3 inch gun | |
| Endurance | Surface: 2500 miles at 16 knots (design) 2000 miles at full power or 4500 miles max (service) / Submerged: 10 miles at 10 knots (design) 9 miles at 8+ knots (service) |
| Complement | 6 Officers and 62 Ratings |
| Note | (i) In M3 these were replaced by four 21 inch bow tubes, which were responsible for an overall increase in length of 10 ft |
Further Reading |
|
| M-class Submarines |
|
Martin H. Brice |
| Class: | 1925 - 1946: Odin Class |
| Built By: | Beardmore (Clyde) |
| Build Group: | O2 |
| Fate: | |
| HMS Orpheus was declared overdue on 27th June 1940. The likely cause of her loss with all hands is that she was mined off Benghazi. | |
The definitive reference guide to tracing your family history. Covering all access levels, from the new beginner to the more experienced researcher, the Encyclopaedia of Genealogy is a comprehensive master class in solving the mysteries of your personal heritage.
20 pages added or updated in the last 3 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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