Проект 874, тип Heweliusz

Length: 61.6 m (202 ft 1 in)
Beam: 10.8 m (35 ft 5 in)
Draft: 3.3 m (10 ft 10 in)
Propulsion:
2 engines Cegielski-Sulzer 6AL25/30 diesels, 1920 hp each
2 auxiliary motors, 204 hp each
2 shafts
bow thruster
Speed: 13.7 knots (25.4 km/h; 15.8 mph)
Complement: 49
Armament: none