Japanese submarine Ro-109
Service
- as Submarine No. 40030 April 1943 — 10 June 1945774 days of the war
- Name
- Ro-109
- Builder
- Kawasaki, Kobe, Japan
- Laid down
- 20 April 1942
- Launched
- 26 October 1942
- Commissioned
- 30 April 1943
- Struck
- 10 June 1945
- Fate
- Sunk 25 April 1945 (1945)
- Status
- Wreck
Specifications
- Displacement, surfaced
- 601 long tons (611 t)
- Displacement, submerged
- 782 long tons (795 t)
- Length
- 60.9 m (199.8 ft) OA
- Beam
- 6 m (19.7 ft)
- Draught
- 3.51 m (11.5 ft)
- Speed
- 14.2 knots (26.3 km/h, 16.3 mph)
- Range
- 3,500 nmi (6,482 km)
- Main gun
- 76 mm (3 in)
Ro-109 was a Ro-100-class submarine, operated by the Imperial Japanese Navy. Her keel was laid at Kawasaki, Kobe, Japan on 20 April 1942. She entered service on 30 April 1943, having been launched on 26 October 1942.
Her class ran to 18 ships.
The boat displaced 601 long tons surfaced and 782 long tons submerged. She measured 60.9 m (200 ft) long with a beam of 6 m (20 ft). Her designed speed was 14.2 knots. Her main battery was of 76 mm (3.0 in) calibre.
Her machinery developed 1,000 bhp.
She was in commission for 774 days of the Second World War. She was struck from the register on 10 June 1945.
She was sunk on 25 April 1945, at 21°58′N 129°38′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
- 1000 bhp (diesel)
- 760 hp (electric motor)
- Armament
- 4 × bow 533 mm torpedo tubes
- 2 × 25 mm Type 96 anti-aircraft guns or 1 × 76.2 mm L/40 AA gun
Sister ships
- Japanese submarine Ro-100
- Japanese submarine Ro-101
- Japanese submarine Ro-102
- Japanese submarine Ro-103
- Japanese submarine Ro-104
- Japanese submarine Ro-105
- Japanese submarine Ro-106
- Japanese submarine Ro-107
- Japanese submarine Ro-108
- Japanese submarine Ro-110
- Japanese submarine Ro-111
- Japanese submarine Ro-112
- Japanese submarine Ro-113
- Japanese submarine Ro-114
- Japanese submarine Ro-115
- Japanese submarine Ro-116
- Japanese submarine Ro-117
Sources
- Facts harvested from Japanese submarine Ro-109 on Wikipedia. Figures only — no wording is taken from it.
- Photograph: Unknown author — N. Polmar, D. Carpenter. Submarines of the Imperial Japanese Navy 1904—1945. — Conway Maritime Press, 1986 — Public domain — Wikimedia Commons