Shinyo (suicide motorboat)

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)
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.