[1] The class is based on the same hull as the Sin Hung-class hydrofoil torpedo boat, and Sin Hung-class patrol boat.

[2] The Sin Hung-class torpedo boats stopped being produced in 1983.

[3] Two diesel engines rated at 2,400 brake horsepower (1,800 kW) each propel the boats, giving a speed of 40 knots (74 km/h).

[4][5] The normal armament consists of two 450-millimetre (18 in) torpedo tubes, although some ships carry 533-millimetre (21 in) torpedo tubes instead, with a gun armament of two twin 14.5 millimetres (0.57 in) machine guns.

[4][1] During a naval drill off Nampo by the Korean People's Navy on October 5, 2016, five Sin Hung-class torpedo boats were part of the 80 some training fleet.