Name Ro-106 Completed 26 December 1942 Class and type Ro-100-class submarine Launched 30 May 1942 | Laid down 17 December 1941 Fate Sunk, 22 May 1944 Construction started 17 December 1941 Builder Kure Naval Arsenal | |
Displacement 611 tonnes (601 long tons) surfaced
795 tonnes (782 long tons) submerged | ||
The Japanese submarine Ro-106 was a Ro-100-class submarine built for the Imperial Japanese Navy during World War II.
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Design and description
The Ro-100 class was a medium-sized, coastal submarine derived from the preceding Kaichū type. They displaced 611 tonnes (601 long tons) surfaced and 795 tonnes (782 long tons) submerged. The submarines were 60.9 meters (199 ft 10 in) long, had a beam of 6 meters (19 ft 8 in) and a draft of 3.51 meters (11 ft 6 in). They had a double hull and a diving depth of 75 meters (246 ft).
For surface running, the boats were powered by two 500-brake-horsepower (373 kW) diesel engines, each driving one propeller shaft. When submerged each propeller was driven by a 380-horsepower (283 kW) electric motor. They could reach 14.2 knots (26.3 km/h; 16.3 mph) on the surface and 8 knots (15 km/h; 9.2 mph) underwater. On the surface, the Ro-100s had a range of 3,500 nautical miles (6,500 km; 4,000 mi) at 12 knots (22 km/h; 14 mph); submerged, they had a range of 60 nmi (110 km; 69 mi) at 3 knots (5.6 km/h; 3.5 mph).
The boats were armed with four internal bow 53.3 cm (21.0 in) torpedo tubes and carried a total of eight torpedoes. They were also armed with two single mounts for 25 mm (1 in) Type 96 anti-aircraft guns or a single 76 mm (3 in) AA gun.
Construction and career
Laid down at Kure Naval Arsenal on 17 December 1941, launched on 30 May 1942 and completed on 26 December 1942. She torpedoed and sank USS LST-342 off the Solomon Islands on 18 July 1943. Ro-106 was sunk by USS England on 22 May 1944, north of the Admiralty Islands at 01°40′N 150°31′E.