Atami-class gunboat

Atami in 1929 in the Setouchi Sea
Class overview
Name	Atami class
Builders	Fujinagata, Osaka
Operators	Imperial Japanese Navy  Republic of China Navy
Preceded by	Seta class
Succeeded by	Kotaka
Built	1928–1930
In commission	1929–1949
Planned	2
Completed	2
Retired	2
General characteristics
Type	Riverine gunboat
Displacement	206 t (203 long tons) light 225 t (221 long tons) standard
Length	45.29 m (148 ft 7 in) pp 46.30 m (151 ft 11 in) oa
Beam	6.91 m (22 ft 8 in)
Draught	1.12 m (3 ft 8 in)
Installed power	Triple expansion engine, 2 × Kampon boilers
Propulsion	2 × shafts, 970 kW (1,300 ihp)
Speed	16+3⁄4 knots (31.0 km/h; 19.3 mph)
Complement	77
Armament	1 × 7.9 cm/28 cal. gun 1 × 13.2 mm (0.52 in) gun 5 × 7.7 mm (0.30 in) machine guns

The Atami-class gunboats (熱海型砲艦, Atami-gata hōkan) were a class of riverine gunboats of the Imperial Japanese Navy. The class consisted of two vessels, Atami (熱海) and Futami (二見). Designed for service on Chinese rivers, they were an improved version of the Seta class. They were constructed by Fujinagata at Osaka, Japan in 1928 to 1930. The gunboats served in the Second Sino-Japanese War and World War II until their surrender in 1945. They were taken over by the Republic of China and renamed Yung Ping and Yung An respectively. Both ships were captured in 1949 by Communist China during the Chinese Civil War.