Ro-100-class submarine

Ro-101 in 1943
Class overview
NameRo-100-class submarine
Builders
Operators Imperial Japanese Navy
Built1941–44
In commission1942–45
Planned18
Completed18
Lost18
General characteristics
TypeSubmarine
Displacement
  • 611 tonnes (601 long tons) surfaced
  • 795 tonnes (782 long tons) submerged
Length60.90 m (199 ft 10 in) overall
Beam6.00 m (19 ft 8 in)
Draft3.51 m (11 ft 6 in)
Installed power
Propulsion
Speed
  • 14.2 knots (26.3 km/h; 16.3 mph) surfaced
  • 8 knots (15 km/h; 9.2 mph) submerged
Range
  • 3,500 nmi (6,500 km; 4,000 mi) at 12 knots (22 km/h; 14 mph) surfaced
  • 60 nmi (110 km; 69 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged
Test depth75 m (246 ft)
Crew38
Armament

The Ro-100-class submarine (呂百型潜水艦, Ro-hyaku-gata Sensuikan) was a group of medium-sized coastal submarines built for the Imperial Japanese Navy (IJN) during World War II. The IJN official designation for this class was Ko type submarine (小型潜水艦, Ko-gata Sensuikan, "Small type Submarine") or Senshō type submarine (潜小型潜水艦, Sen-Shō-gata sensuikan, "Submarine-Small Type"). They are also known as Type KS submarine. The type name was shortened to Sensuikan Ko-gata (水艦, Submarine-Small Type).