ST-class armored boat
| Class overview | |
|---|---|
| Name | ST-class armored boat |
| Builders | Mitsubishi Heavy Industries, Yokohama |
| Operators | Imperial Japanese Army |
| Preceded by | Sōkōtei-class |
| In service | 1940–1945 |
| General characteristics | |
| Type | Armored boat |
| Length | 11 m (36.09 ft) o/a |
| Beam | 2.0 m (6.56 ft) |
| Draught | 1.1 m (3.61 ft) |
| Installed power | 150 hp |
| Propulsion | Diesel engine |
| Speed | 9.65 knots (17.9 km/h) |
| Armament | 1 x 37 mm tank gun |
The ST-class was a type of armored boat of the Imperial Japanese Army that saw service during World War II. She was developed in 1940 (Showa 15) mainly for riverine patrol in China, a role that was previously served by the Soukoutei-class armored boat. The prototype was 11 meters long with a beam of 2.00 meters and a draught of 1.10 meters. Her speed was 9.65 knots. All ships were built at the Yokohama shipyard of Mitsubishi Heavy Industries She was armed with a 37 mm gun (jp:狙撃砲).