NAVYPEDIA

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Б.1 [B.1]			Baltic Wks, Petrograd	1917	---	---	suspended 1918
Б.2 [B.2]			Baltic Wks, Petrograd	1917	---	---	suspended 1918
Б.3 [B.3]			Baltic Wks, Petrograd	1917	---	---	suspended 1918
Б.4 [B.4]			Baltic Wks, Petrograd	1917	---	---	suspended 1918

Technical data

Displacement standard, t
Displacement normal, t	971 / 1264
Length, m	80.5
Breadth, m	7.00
Draught, m	4.00
No of shafts	2
Machinery	2 diesels / 2 electric motors
Power, h. p.	2640 / 740
Max speed, kts	17 / 9
Fuel, t	diesel oil
Endurance, nm(kts)	3000(10) / 100(5)
Armament	2 x 1 - 102/33 Obukhov, 1 x 1 - 57/50 Hotchkiss, 16 - 450 TT (4 bow, 2 stern, 4 beam, 6 ext drop-collars, 20)
Complement	49
Diving depth operational, m	45

Standard scale images

Project history

Part of the 1916 Submarine Programme, designated for the Baltic Fleet. Bubnov design, influenced by the Holland ones and therefore included such innovations as a double hull and subdivision into 8 watertight compartments. Four of her TT were transversally sited. Ordered 1916, construction begun 1916-17 but abandoned after the Bolshevik Revolution.