H.M.S. R8
1918
(Navis 178)
- Class: R class - 10 submarines of 1918
- Displacement: 410 tons surfaced; 503 tons submerged
- Dimensions: 163ft 9in x 15ft 3in x 11ft 6in
- Machinery: 1-shaft, diesel, electric motor, 240hp/1200hp = 9.5/15 kts + 25hp auxiliary motor
- Armament: 6-18in TT (bow)
- Complement: 22
- Builder: Vickers
- Laid Down: 1918
- Launched: 28 Jun 1918
- Completed: 1918
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