KALEV submarines (1937)

Lembit 1940

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Kalev			Vickers-Armstrong, Barrow, UK	5.1935	7.7.1936	3.1937	to USSR 13.8.1940 (Калев [Kalev])
Lembit			Vickers-Armstrong, Barrow, UK	5.1935	7.7.1936	4.1937	to USSR 13.8.1940 (Лембит [Lembit])

Displacement standard, t
Displacement normal, t	665 / 853
Length, m	59.5
Breadth, m	7.24
Draught, m	3.50
No of shafts	2
Machinery	2 Vickers diesels / 2 electric motors
Power, h. p.	1200 / 790
Max speed, kts	13.5 / 8.5
Fuel, t	diesel oil 31
Endurance, nm(kts)	4000(8) / 80(4)
Armament	1 x 1 - 40/43 Škoda, 4 - 533 TT (bow, 8), 20 mines
Complement	38
Diving depth operational, m	75

Project history: Submarine minelayers, built under original project, ordered 12.12.1934. Part of amount on building has been obtained from sale of two destroyers to Peru and a part was collected on a subscription among the population.
Submarines had saddle-tank construction with side bulges in which ballast tanks and the mine tubes took places. Light hull on waterline was strengthened for ice navigation. Mines were carried on two in 10 vertical tubes (on 5 aside). The 40mm MG in submerged position was retracted into watertight trunk. TTs had special brasses for usage of 450mm of torpedoes. As a whole submarines differed by good performance parameters, from lacks the shallow diving depth was marked.

Modernizations: None.

Naval service: With occurrence of Estonia into USSR 19.8.1940 both entered Red Navy.

Kalev 1937

ESTONIAN NAVY (ESTONIA)

SUBMARINES

KALEV submarines (1937)