Japanese submarine I-400
Service
- as I-40030 December 1944 — 15 September 1945248 days of the war
- Name
- I-400
- Builder
- Kure Naval Arsenal, Kure, Japan
- Laid down
- 18 January 1943
- Launched
- 18 January 1944
- Commissioned
- 30 December 1944
- Struck
- 15 September 1945
- Fate
- Surrendered 27 August 1945
Sunk as target 4 June 1946 (1945) - Status
- Wreck
Specifications
- Displacement, surfaced
- 5,223 long tons (5,307 t)
- Displacement, submerged
- 6,560 long tons (6,665 t)
- Length
- 122 m (400.3 ft)
- Beam
- 12 m (39.4 ft)
- Draught
- 7 m (23 ft)
- Speed
- 18.8 knots (34.7 km/h, 21.6 mph)
- Range
- 37,500 nmi (69,450 km)
- Complement
- 144
- Main gun
- 140 mm (5.5 in)
I-400 was a I-400-class submarine built for the Imperial Japanese Navy. Her keel was laid at Kure Naval Arsenal, Kure, Japan on 18 January 1943. Launched on 18 January 1944, she entered service on 30 December 1944.
She was one of three ships of her class.
The boat displaced 5,223 long tons surfaced and 6,560 long tons submerged. She measured 122 m (400 ft) long with a beam of 12 m (39 ft). Her designed speed was 18.8 knots, and she carried a complement of 144.
Her main battery was one 140 mm (5.5 in) guns. She carried three aircraft.
She was in commission for 248 days of the Second World War. She was struck from the register on 15 September 1945.
She was expended as a target on 27 August 1945. 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
- 4 diesel engines, 7700 hp
- Electric motors, 2400 hp
- Armament
- 8 × 533 mm forward torpedo tubes
- 20 × Type 95 torpedoes
- 1 × 14 cm/40 11th Year Type naval gun
- 3 × 25 mm 3-barrel machine gun
- 1 × Type 96 25 mm machine gun
- Aircraft
- 3 × Aichi M6A1 Seiran sea-planes
Sister ships
Sources
- Facts harvested from Japanese submarine I-400 on Wikipedia. Figures only — no wording is taken from it.
- Photograph: Anonymous Unknown author — Naval History and Heritage Command NH 111821 I-14 and I-400 Japanese Submarines alongside USS PROTEUS — Public domain — Wikimedia Commons