| Z21 - Wilhelm Heidkamp |
 |
| Photo courtesy David Walker, Scotland |
| General Details |
| Type |
1936 |
| Pennant number |
43 |
| Builder |
DeSchiMAG, Bremen, Germany |
| Builder's number |
923 |
| Contract placed |
6 January 1936 |
| Laid down |
15 December 1937 |
| Launched |
20 August 1938 |
| Commissioned |
20 June 1939 |
| Fate |
Torpedoed by HMS Hardy whilst at anchor in Narvik harbour 10 April 1940. Z21 broke in two and the forward half sank 11 April 1940. |
Ship named after
|
Obermaschinist Wilhelm Heidkamp. Served on board SMS Seydlitz. He was injured when he opened the red-hot flooding valves of the ammunition magazine and thus prevented his ship from exploding 24 January 1915. He survived the war but later died of his injuries. |
| Displacement |
| Displacement, standard |
2.411 t |
| Displacement, full load |
3.415 t |
| Dimensions and Construction Details |
| Lenght (waterline) |
120 m |
| Lenght (total) |
125 m |
| Beam |
11,8 m |
| Draft |
4,23 m |
| Machinery |
| Boilers |
Six Wagner 70 Kg/cm² |
| Turbines |
Two Wagner geared |
| Turbo generators |
Two of 200 kW each |
| Diesel generators |
One of 40 kW and two of 80 kW each |
| Shafts |
2 |
| Total performance |
74.482 shp |
| Speed |
40,45 knots |
| Range |
2.050 nm at 19 knots |
| Armament |
| 12,7 cm L/45 C/34 |
5 in single mountings |
| 3,7 cm L/83 C/30 |
4 in twin mountings |
| 2 cm MG L/65 C/30 |
6 in single mountings |
| 53,3 cm Torpedo tubes |
8 in two quadruple banks |
| Mines |
60 |
| Depth Charge launcher |
4 |
| Commanding Officers |
| 20.06.1939 - 11.04.1940 |
Korvettenkapitän Hans Erdmenger |
| Complement |
| Complement |
323 officers and men |