Imperial Japanese Navy — Submarine
Japanese submarine Ro-103
- Displacement
- 601 long tons (611 t)
- Length
- 60.9 m (199.8 ft)
- Beam
- 6 m (19.7 ft)
- Speed
- 14.2 knots (26.3 km/h, 16.3 mph)
- Main gun
- 76 mm (3 in)
Service
- as Submarine No. 21321 October 1942 — 1 November 1943376 days of the war
Ro-100-class submarine
Particulars
- Name
- Ro-103
- Builder
- Kure Naval Arsenal, Kure, Japan
- Laid down
- 30 June 1941
- Launched
- 6 December 1941
- Commissioned
- 21 October 1942
- Struck
- 1 November 1943
- Fate
- Missing after 28 July 1943 (1943)
- Status
- Unknown
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-103 was a Ro-100-class submarine built for the Imperial Japanese Navy. Her keel was laid at Kure Naval Arsenal, Kure, Japan on 30 June 1941. She entered service on 21 October 1942, having been launched on 6 December 1941.
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 376 days of the Second World War. She was struck from the register on 1 November 1943.
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-104
- Japanese submarine Ro-105
- Japanese submarine Ro-106
- Japanese submarine Ro-107
- Japanese submarine Ro-108
- Japanese submarine Ro-109
- 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-103 on Wikipedia. Figures only — no wording is taken from it.