NAVYPEDIA

Photo

O15 Many thanks to Wolfgang Stöhr for additional information on this page.

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
O12		186	De Schelde, Vlissingen	10.1928	8.11.1930	7.1931	scuttled 14.5.1940
O13		190	De Schelde, Vlissingen	12.1928	18.4.1931	10.1931	sunk 13?.6.1940
O14		191	De Schelde, Vlissingen	12.1928	3.10.1931	3.1932	stricken 6.1943
O15		319	Wilton-Fijenoord, Schiedam	3.1930	27.5.1931	7.1932	stricken 9.1945

Technical data

Displacement standard, t	548
Displacement normal, t	610 / 754
Length, m	60.4
Breadth, m	6.83
Draught, m	3.60
No of shafts	2
Machinery	O12 - 14: 2 Sulzer 6-cyl diesels / 2 Schmitt electric motors O15: 2 MAN 6-cyl diesels / 2 Schmitt electric motors
Power, h. p.	1800 / 620
Max speed, kts	16 / 8
Fuel, t	diesel oil
Endurance, nm(kts)	3500(10) / 26(8)
Armament	2 x 1 - 40/36 Bofors, 1 x 1 - 12.7/90, 5 - 533 TT (4 bow, 1 stern, 10)
Complement	31
Diving depth operational, m	60

Standard scale images

Graphics

Project history

Ordered in 1927-1929, these submarines were a considerable step forward for Dutch submarines. They were first Dutch submarines, armed by only 533mm torpedoes. They were armed by 2 single 40mm/40 MGs in disappearing mounts repeated subsequently on other classes. They were the first Dutch submarines with electrically-driven periscopes and a purification system of lenses by pressured air. Submarines were differed by bad stability. For elimination of this lack in 1936-1937 amidships ballast tank was enlarged and both 40mm MGs were removed (accordingly the CT form was altered) then the stability has settled into shape.

Modernizations

1936-1937, all: - 2 x 1 - 40/40

Naval service

O12 was scuttled at Den Helder 14.5.1940; subsequently she was salvaged by German wreckers and 30.1.1943 entered German service as UD2, stricken 6.7.1944 and scuttled at Kiel 3.5.1945, subsequently she was salvaged and broken up. O13 was lost in the North Sea in June, 1940 by unknown cause. Probable causes of loss: mine, underwater collision with Polish submarine Wilk 20.6.1940 or German air attack 16.6.1940.



Many thanks to Wolfgang Stöhr for additional information on this page.