Medium submarine RO-63.
The L4 Type (RO-60 class) submarines were developed from the British L Class design and powered by Vickers diesel engines. They were used operationally early in the war, but later withdrawn and using as training boats.
| Units | 10 (4 survived) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Ships | RO-60, RO-61, RO-62, RO-63, RO-64, RO-65, RO-66, RO-67 and RO-68 | ||||||||||
| Year(s) Completed | 1922 - 1926 | ||||||||||
| Displacement | 990 tons / 1,322 tons | ||||||||||
| Dimensions | 250 ft x 24.3 ft x 12.3 ft | ||||||||||
| Machinery | 2 diesels: 2,400 hp
2 electric motors |
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| Speed | 16 knots / 8 knots | ||||||||||
| Range | 5,500 nm @ 10 knots | ||||||||||
| Armament | 6 x533mm TT fwd + 1x76mm (10 Torpedoes) | ||||||||||
| Max. Depth | 59 m (195 feet) | ||||||||||
| Crew | 60 officers and men |
