Class S

Boats in this Class Zeehond (1)

Zeehond (1) (Photo: © Collection G.D. Horneman). .

Boat	Zeehond (1)
Pennant #	British navy: 73S, 73N, N73 Dutch navy: N 73
Class name	British navy: S (Group I) Dutch navy: S
Laid down	1 Jan 1931 or 3 Jan1931
Launched	8 Jan 1932
Commissioned	British navy: 15 Dec 1932 Dutch navy: 11 Oct 1943
Refitted	1943
Decommissioned	British navy: Apr 1943 Dutch navy: 14 Nov 1945
Fate	1946/47 Broken up
Other names	British navy: Sturgeon
Design	U.K.
Shipyard	Royal Navy Dockyard, Chatham, Kent, U.K.
Le x Be x Dr	61.6 m x 7.1 m x 4.1 m
Displ. surf/subm	620 t (730t) / 927 t
Engines	Two 6-cylinder Vickers diesel engines, 4-stroke, 2 x 775 apk
Fuel	44 t
Main motor	Two electric motors/generators, 2 x 650 apk
Batteries	2 x 112 cells. 3700 Ah during 5 hours
Shafts	2
Speed surf/subm	14 kts / 10 kts
Range	6000 nm at 10 kts surfaced 30 nm at 10 kts submerged 106 nm at 4 knots submerged
Diving depth	90 m
Complement	40
Torpedo tubes	4 x 21" bow, 2 x 21" bow external
Torpedo Type	Mk VIII
Armament	10, 12 or 14 torpedoes
Guns	1 x 7.6 cm, 1 x 20 mm The gun in the first two Group 1 boats was in a retractable mounting. These proved unsatisfactory and were replaced with conventional mounts.

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