Recognition Guide Warships of the Second World War
Imperial Japanese Navy — Submarine

Japanese submarine Ro-46

Kaichū type submarine (K6 subclass)

Japanese submarine Ro-46
Unknown author — Twitter — Public domain — Wikimedia Commons Plate Japanese submarine Ro-46 on sea trials

Service

  1. Imperial Japanese Navy as Submarine No. 38719 February 1944 — 10 June 1945477 days of the war
Kaichū type submarine (K6 subclass) Particulars
Name
Ro-46
Builder
Mitsubishi, Kobe, Japan
Laid down
13 June 1942
Launched
23 May 1943
Commissioned
19 February 1944
Struck
10 June 1945
Fate
Missing after 17 April 1945 (1945)
Status
Unknown

Specifications

Displacement, surfaced
1,115 long tons (1,133 t)
Displacement, submerged
1,447 long tons (1,470 t)
Length
80.5 m (264.1 ft) OA
Beam
7 m (23 ft)
Draught
4.07 m (13.4 ft)
Speed
19.8 knots (36.6 km/h, 22.7 mph)
Range
5,000 nmi (9,260 km)
Main gun
76 mm (3 in)

Ro-46 was a submarine of the Kaichū type submarine (K6 subclass) in service with the Imperial Japanese Navy. Her keel was laid at Mitsubishi, Kobe, Japan on 13 June 1942. She entered service on 19 February 1944, having been launched on 23 May 1943.

The boat displaced 1,115 long tons surfaced and 1,447 long tons submerged. She measured 80.5 m (264 ft) long with a beam of 7 m (23 ft). Her designed speed was 19.8 knots.

Her main battery was one 76 mm (3 in) guns. Her machinery developed 4,200 bhp.

She was in commission for 477 days of the Second World War. She was struck from the register on 10 June 1945.

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
  • 4200 bhp (diesel)
  • 1200 hp (electric motor)
Armament
  • 4 × bow 533 mm torpedo tubes
  • 1 × 76.2 mm L/40 anti-aircraft gun
  • 2 × single 25 mm AA guns

Sister ships

Sources