Japanese submarine Ro-26

	Submarine No. 45 on 9 June 1923. She was renamed Ro-26 on 1 November 1924.
History
Japan
Name	Submarine No. 45
Builder	Sasebo Naval Arsenal, Sasebo, Japan
Laid down	10 March 1921
Launched	18 October 1921
Completed	25 January 1923
Commissioned	25 January 1923
Renamed	Ro-26 on 1 November 1924
Decommissioned	15 December 1938
Recommissioned	1 May 1939
Decommissioned	1 April 1940
Stricken	1 April 1940
Renamed	Heisan No. 6 on 1 April 1940
Fate	Hulked 1 April 1940; Scrapped 1947–1948;
General characteristics
Class & type	Kaichū type submarine (K4 subclass)
Displacement	762 tonnes (750 long tons) surfaced; 1,097 tonnes (1,080 long tons) submerged;
Length	74.22 m (243 ft 6 in) overall
Beam	6.12 m (20 ft 1 in)
Draft	3.73 m (12 ft 3 in)
Installed power	2,900 bhp (2,200 kW) (diesel); 1,200 hp (890 kW) (electric motor);
Propulsion	Diesel-electric; 2 × Sulzer Mark II diesel engine, 75 tons fuel; 2 × electric motor; 2 x shafts;
Speed	16 knots (30 km/h; 18 mph) surfaced; 8.5 knots (15.7 km/h; 9.8 mph) submerged;
Range	6,000 nmi (11,000 km; 6,900 mi) at 10 knots (19 km/h; 12 mph) surfaced; 85 nmi (157 km; 98 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged;
Test depth	45.7 m (150 ft)
Crew	46
Armament	4 × bow 533 mm (21 in) torpedo tubes; 8 x 6th Year Type torpedoes; 1 × 76.2 mm (3.00 in) gun;

Ro-26, originally named Submarine No. 45, was an Imperial Japanese Navy Kaichū-Type submarine, the lead unit of the Kaichū IV subclass. She was in commission from 1923 to 1938 and from 1939 to 1940.