IJN RO-33
Sunk
| Type | Submarine |
|---|---|
| Class | Kaichū |
| War | Second World War |
| Main guns | 1 × 3″ gun |
Medium submarine. Sank the small Australian steamer Mamutu in the Gulf of Papua on 7 August 1942, machine-gunning the survivors. Sunk with all hands by the destroyer HMAS Arunta off Port Moresby on 29 August 1942.
Armament and specifications
Armament
- 4 × bow 533 mm (21 in) torpedo tubes
- 1 × 76.2 mm (3.00 in) L/40 anti-aircraft gun
- 1 × 13.2 mm (0.52 in) Type 93 anti-aircraft machinegun
| Builder | Kure Naval Arsenal, Kure, Japan |
|---|---|
| Laid down | 8 August 1933 |
| Launched | 10 October 1934 |
| Commissioned | 7 October 1935 |
| Displacement | 955 tonnes (940 long tons) surfaced 1,219 tonnes (1,200 long tons) submerged |
| Length | 73 m (239 ft 6 in) overall |
| Speed | 19 knots (35 km/h; 22 mph) surfaced 8.25 knots (15.28 km/h; 9.49 mph) submerged |
As built, from the ship's Wikipedia article. Figures there may cover later refits too.
Career
Launched
10 October 1934
29 August 1942
All 42 aboard killed