Displacement:         650 tons (standard),

                               1,025 tons (full war 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 × 4-inch gun

                                 3 × 20 mm Oerlikons

                                 Machine guns

                                 Depth charges

                                 chutes and throwers