Displacement:    650 tons (standard),

                             1,025 tons (full  load)

Length:                186 ft (57 m)

Beam:                  31 ft (9.4 m)

Draught:              8.5 ft (2.6 m)

Propulsion:         triple expansion engine,

                              2 shafts

Speed:                  15 knots 28 km/h; 17 mph

                              at 1,750 hp

Complement:      85

Armament:          1 × QF 4-inch (102 mm)

                              Mk XVI gun

                              Depth charges

                              chutes and throwers