Sizes:
Length - 91,3 m
Beam - 8,5 m
Height from the base plane - 11, 9 m
Draught - 5 m
Autonomous navigation - 90 days
Distance of surface navigation under motor of economic speed - 240 miles
crew - 80 persons: officers - 13, midshipmen - 11, petty officers - 16, sailors - 40

Displacement:
Surface position - 1945 t
Submergence position - 2472 t
Buoyancy reserve - 26, 8 %

Dip:
Maximum - 400 m
Working - 240 m
Periscopical - 9 m

Maximum speed:
Surface position -17 knots
Submergence position - 17 knots

Armament:
Six 533 mm bow torpedo tubes
Four 533 mm stern torpedo tubes
Armament: torpedo version - 22 torpedoes
Mine type - 22 mines and 12 torpedoes
Firing depth- up to 100 m