Japanese submarine Ro-38

History
Japan
Name	Submarine No. 204
Builder	Mitsubishi, Kobe, Japan
Laid down	20 June 1942
Renamed	Ro-38 on 1 November 1942
Launched	24 December 1942
Completed	24 July 1943
Commissioned	24 July 1943
Fate	Missing after 19 November 1943 Possibly sunk 24 November 1943
Stricken	30 April 1944
General characteristics
Class and type	Kaichū type submarine (K6 subclass)
Displacement	1,133 tonnes (1,115 long tons) surfaced 1,470 tonnes (1,447 long tons) submerged
Length	80.5 m (264 ft 1 in) overall
Beam	7 m (23 ft 0 in)
Draft	4.07 m (13 ft 4 in)
Installed power	4,200 bhp (3,100 kW) (diesel) 1,200 hp (890 kW) (electric motor)
Propulsion	Diesel-electric 1 × diesel engine 1 × electric motor
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 depth	80 m (260 ft)
Crew	61
Armament	4 × bow 533 mm (21 in) torpedo tubes 1 × anti-aircraft gun 2 × single 25 mm (1.0 in) AA guns

Ro-38 was an Imperial Japanese Navy Kaichū type submarine of the K6 sub-class. Completed and commissioned in July 1943, she served in World War II and was sunk in November 1943 during her first war patrol.

Design and description

The submarines of the K6 sub-class were versions of the preceding K5 sub-class with greater range and diving depth.^[1] They displaced 1,133 tonnes (1,115 long tons) surfaced and 1,470 tonnes (1,447 long tons) submerged. The submarines were 80.5 meters (264 ft 1 in) long, had a beam of 7 meters (23 ft 0 in) and a draft of 4.07 meters (13 ft 4 in). They had a diving depth of 80 meters (260 ft).^[2]

For surface running, the boats were powered by two 2,100-

Upon commissioning, Ro-38 was attached formally to the Maizuru Naval District,[4] and on 31 July 1943 she was assigned to Submarine Squadron 11 for workups.^[4] On 31 October 1943 she was reassigned to Submarine Division 34 in the 6th Fleet, and she departed Maizuru bound for Truk that day. She arrived at Truk on 8 November 1943.^[4]

Ro-38 got underway from Truk on 19 November 1943 to begin her first war patrol, assigned a patrol area in the Gilbert Islands in the vicinity of Makin and Tarawa.^[4] The Japanese never heard from her again.^[4]

On 20 November 1943, the Battles

The circumstances of Ro-38′s loss are unknown. It is possible that the United States Navy destroyer USS Cotten (DD-669) sank her west of Tarawa on 24 November 1943.^[4] On 2 January 1944, the Imperial Japanese Navy declared her to be presumed lost off the Gilbert Islands with all 77 hands.^[4] She was stricken from the Navy list on 30 April 1944.^[4]

Notes

References

• Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press.
  ISBN 0-87021-962-6
  .
• Carpenter, Dorr B. & Polmar, Norman (1986). Submarines of the Imperial Japanese Navy 1904–1945. London: Conway Maritime Press.
  ISBN 0-85177-396-6
  .
• Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press.
  ISBN 0-85177-146-7
  .
• Hackett, Bob; Kingsepp, Sander (2017). "IJN Submarine RO-38: Tabular Record of Movement". SENSUIKAN! Stories and Battle Histories of the IJN's Submarines. Combinedfleet.com. Retrieved 20 September 2020.
• Hackett, Bob; Sander Kingsepp (2003). "Kaichu Type". Sensuikan!. Combinedfleet.com. Retrieved 20 September 2020.
• Hashimoto, Mochitsura (1954). Sunk: The Story of the Japanese Submarine Fleet 1942 – 1945. Colegrave, E.H.M. (translator). London: Cassell and Company. ASIN B000QSM3L0.