Japanese submarine Ro-55 (1944)

History
Japan
NameSubmarine No 396
BuilderMitsui Zosensho, Tamano, Japan
Laid down5 August 1943
Launched23 April 1944
RenamedRo-55 on 23 April 1944
Completed30 September 1944
Commissioned30 September 1944
FateSunk 7 February 1945
Stricken10 May 1945
General characteristics
Class & typeKaichū type submarine (K6 subclass)
Displacement
  • 1,133 tonnes (1,115 long tons) surfaced
  • 1,470 tonnes (1,447 long tons) submerged
Length80.5 m (264 ft 1 in) overall
Beam7 m (23 ft 0 in)
Draft4.07 m (13 ft 4 in)
Installed power
Propulsion
Speed
  • 19.75 knots (36.58 km/h; 22.73 mph) surfaced
  • 8 knots (15 km/h; 9.2 mph) submerged
Range
  • 5,000 nmi (9,300 km; 5,800 mi) at 16 knots (30 km/h; 18 mph) surfaced
  • 45 nmi (83 km; 52 mi) at 5 knots (9.3 km/h; 5.8 mph) submerged
Test depth80 m (260 ft)
Crew61
Armament

The second Ro-55 was an Imperial Japanese Navy Kaichū type submarine of the K6 sub-class. Completed and commissioned in September 1944, she served in World War II and was sunk during her first war patrol in February 1945.