Japanese submarine Ro-61

History
Empire of Japan
Name	Ro-61
Laid down	5 June 1922
Launched	19 May 1923
Commissioned	9 February 1924
General characteristics
Class and type	Type L4 (Ro-60-class) submarine
Displacement	988 long tons (1,004 t) (surfaced); 1,301 tons (1,322 t) (submerged);
Length	78.39 m (257 ft 2 in)
Beam	7.41 m (24 ft 4 in)
Draft	3.96 m (13 ft 0 in)
Propulsion	2 × Vickers diesels, 2 shafts; 2,400 bhp (surfaced), 1,600 (submerged)
Speed	15.7 knots (29.1 km/h) (surfaced); 8.6 knots (15.9 km/h) (submerged);
Range	5,500 nautical miles (10,200 km) at 10 knots (19 km/h) (surfaced); 80 nautical miles (150 km) at 5.7 knots (10.6 km/h) (submerged);
Test depth	60 m (200 ft)
Complement	48
Armament	6 × 533 mm torpedo tubes (6 × bow); 12 × 6th Year Type torpedoes; 1 × 76.2 mm (3.00 in) L/40 naval gun; 1 × 6.5 mm machine gun;

Ro-61 was a Japanese Type L submarine of the Imperial Japanese Navy which served during the 1920s and World War II.

History

Ro-61 was laid down on 5 June 1922 at the Kobe Shipyard of Mitsubishi Heavy Industries and launched on 19 May 1923.^[1] She was renumbered RO-61 on 1 November 1924.^[1] On 9 February 1924, she was completed and attached to the Sasebo Naval District.^[1]^[2]

References

^ ^a ^b ^c Hackett, Bob; Kingsepp, Sander (2012). "Sensuikan: IJN Submarine RO-61: Tabular Record of Movement". combinedfleet.com. Retrieved 5 November 2019.
^ Niehorster, Leo; Alsleben, Al; Yoda, Tadashi; Donahoo, Jeff. "RO-Boats (2nd Class Submarines)". Imperial Japanese Armed Forces.

Bibliography

"Rekishi Gunzō"., History of Pacific War Extra, "Perfect guide, The submarines of the Imperial Japanese Forces", Gakken (Japan), March 2005, ISBN 4-05-603890-2
The Maru Special, Japanese Naval Vessels No.43 Japanese Submarines III, Ushio Shobō (Japan), September 1980, Book code 68343-44
The Maru Special, Japanese Naval Vessels No.132 Japanese Submarines I "Revised edition", Ushio Shobō (Japan), February 1988, Book code 68344-36
The Maru Special, Japanese Naval Vessels No.133 Japanese Submarines II "Revised edition", Ushio Shobō (Japan), March 1988, Book code 68344-37

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[CF-RO-61-1] Hackett, Bob; Kingsepp, Sander (2012). "Sensuikan: IJN Submarine RO-61: Tabular Record of Movement". combinedfleet.com. Retrieved 5 November 2019.

[2] Niehorster, Leo; Alsleben, Al; Yoda, Tadashi; Donahoo, Jeff. "RO-Boats (2nd Class Submarines)". Imperial Japanese Armed Forces.

[1]

[2]

v t e Type L submarine
Ro-51-class (Type L1)	Ro-51 Ro-52
Ro-53-class (Type L2)	Ro-53 Ro-54 Ro-55 Ro-56
Ro-57-class (Type L3)	Ro-57 Ro-58 Ro-59
Ro-60-class (Type L4)	Ro-60 Ro-61 Ro-62 Ro-63 Ro-64 Ro-65 Ro-66 Ro-67 Ro-68
Preceded by: Type F submarine Followed by: Kaichū type submarine Imperial Japanese Navy submarines