Japanese submarine Ro-33
Service
- as Original name unknown7 October 1935 — 5 October 19421,130 days of the war
- Name
- Ro-33
- Builder
- Kure Naval Arsenal, Kure, Japan
- Laid down
- 8 August 1933
- Launched
- 10 October 1934
- Commissioned
- 7 October 1935
- Decommissioned
- 15 November 1939
- Recommissioned
- 1 May 1940
- Struck
- 5 October 1942
- Fate
- Sunk 29 August 1942 (1942)
- Status
- Wreck
Specifications
- Displacement, surfaced
- 940 long tons (955 t)
- Displacement, submerged
- 1,200 long tons (1,219 t)
- Length
- 73 m (239.5 ft) OA
- Beam
- 6.7 m (22 ft)
- Draught
- 3.25 m (10.7 ft)
- Speed
- 19 knots (35.2 km/h, 21.9 mph)
- Range
- 8,000 nmi (14,816 km)
- Main gun
- 76 mm (3 in)
Ro-33 was a submarine of the Kaichū type submarine (K6 subclass), operated by the Imperial Japanese Navy. Kure Naval Arsenal, Kure, Japan laid her keel on 8 August 1933. She entered service on 7 October 1935, having been launched on 10 October 1934.
The boat displaced 940 long tons surfaced and 1,200 long tons submerged. She measured 73 m (240 ft) long with a beam of 6.7 m (22 ft). Her designed speed was 19 knots.
Her main battery was one 76 mm (3 in) guns. Her machinery developed 3,000 bhp.
She was in commission for 1,130 days of the Second World War. She was decommissioned on 15 November 1939. She recommissioned on 1 May 1940. She was struck from the register on 5 October 1942.
She was sunk on 29 August 1942, at 14°27′S 106°11′E. The wreck survives.
Written from the harvested record. Every figure above is sourced; the wording is this site's own.
Armament and machinery
Armament and machinery
- Propulsion
- Diesel-electric
- 1 × diesel engine
- 1 × electric motor
- Power
- 3000 bhp (diesel)
- 1200 hp (electric motor)
- Armament
- 4 × bow 533 mm torpedo tubes
- 1 × 76.2 mm L/40 anti-aircraft gun
- 1 × 13.2 mm Type 93 anti-aircraft machinegun
Sister ships
- Japanese submarine Ro-31
- Japanese submarine Ro-34
- Japanese submarine Ro-35
- Japanese submarine Ro-36
- Japanese submarine Ro-37
- Japanese submarine Ro-38
- Japanese submarine Ro-39
- Japanese submarine Ro-40
- Japanese submarine Ro-41
- Japanese submarine Ro-42
- Japanese submarine Ro-43
- Japanese submarine Ro-44
- Japanese submarine Ro-45
- Japanese submarine Ro-46
- Japanese submarine Ro-47
- Japanese submarine Ro-48
- Japanese submarine Ro-49
- Japanese submarine Ro-50
- Japanese submarine Ro-55 (1944)
- Japanese submarine Ro-56 (1944)
Sources
- Facts harvested from Japanese submarine Ro-33 on Wikipedia. Figures only — no wording is taken from it.
- Photograph: Imperial Japanese Navy — The Maru Special No.132 "Japanese Submarines I" — Public domain — Wikimedia Commons