Shinyo (suicide motorboat)

For other uses, see Japanese aircraft carrier Shin'yō.
A Shinyo suicide motorboat being tested by Lt Col James F. Doyle USA commanding officer 2nd Battalion, 305th Infantry 69th Division
Class overview
NameShin'yō-class suicide motorboat
BuildersYokosuka Naval Arsenal
Operators Imperial Japanese Navy
SubclassesShinyo Type 1, Shinyo Type 5
BuiltApril 1944–June 1945
In commissionAugust 1944–August 1945
Planned11,300
Completed6,197
LostAt least 36
General characteristics
Class & typeMotorboat
Displacement
  • Type 1: 1.35 t (1.33 long tons)
  • Type 5: 2.2 t (2.2 long tons)
PropulsionToyota Type B engine
Speed
  • Type 1: 26 knots (48 km/h; 30 mph)
  • Type 5: 30 knots (56 km/h; 35 mph)
CrewType 1: 1, Type 5: 2
Armament
  • Bow-mounted Type 98 high explosive charge of 270 kg (600 lb)
  • Two 120 mm (4.7 in) anti-ship rockets mounted on launchers

The Shinyo (震洋, Shin'yō; "Sea Quake") were Japanese suicide motorboats developed during World War II. They were part of the wider Japanese Special Attack Units program.

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