Summary
The Evertsen class or Kortenaer class was a class of coastal defense ships[a] of the Royal Netherlands Navy.[1] The class comprised Evertsen, Piet Hein and Kortenaer.[3]
 HNLMS Evertsen at sea.
| |
| Class overview | |
|---|---|
| Name | Evertsen class |
| Builders |
|
| Operators |  Royal Netherlands Navy |
| Succeeded by | Koningin Regentes class |
| Built | 1893-1896[1] |
| In service | 1895-1920 |
| Completed | 3 |
| Retired | 3 |
| General characteristics [2] | |
| Type | Coastal defense ship |
| Displacement | 3,464 tons |
| Length | 86.2 m (282 ft 10 in) |
| Beam | 14.33 m (47 ft 0 in) |
| Draught | 5.23 m (17 ft 2 in) |
| Propulsion | 4,700 hp (3,500 kW), two shafts |
| Speed | 16 knots (30 km/h) |
| Capacity | 289 tons of coal storage |
| Complement | 263 |
| Armament |
|
| Armour |
|
Design edit
The ships of the class were 86.2 metres (282 ft 10 in) long, had a beam of 14.33 metres (47 ft 0 in), a draught of 5.23 metres (17 ft 2 in), and had a displacement of 3,464 ton.[2] The ships were equipped with 2 shaft reciprocating engines, which were rated at 4,700 ihp (3,500 kW) and produced a top speed of 16 knots (30 km/h).[2] In addition, the machinery had two sets of triple expansions.[4]
When it came to naval armour all three ships were equipped with Harvey armour.[2] The ships had belt armour of 6 in (15 cm), 9.5 in (24 cm) barbette armour and 9.5 in (24 cm) turret armour.[4] Deck armour of the Evertsen class was 2.25 in (5.7 cm).[4]
Armament edit
The main armament of the ships consisted of three 21 cm A No. 1 guns. Two of these were placed in a Barbette on the bow.[3] The third was behind a shield on the stern.[5] These were second hand guns re-used to economize, while the newer 21 cm A No. 2 gun used on HNLMS Koningin Wilhelmina der Nederlanden was already available. This led to sharp criticism.[6] The 21 cm A No. 1 gun was a 21 cm L/35 Krupp gun first built in 1882. The 9 guns required were taken from 9 gunboats instead of buying 9 new 21 cm A No. 2 guns. The 21 cm A No. 2 was a newer model of the Krupp gun, had the same length (L/35) and was only 700 kg heavier, but had about 10% more penetrative power at 2,000 m.[7]
Secondary armament included two single 15 cm (5.9 in) guns and six single 7.5 cm (3.0 in) guns.[3] Furthermore, it had three 45 cm (18 in) torpedo tubes.[4]
Ships edit
| Name | Laid down | Launched | Commissioned | Decommissioned | Shipyard |
|---|---|---|---|---|---|
| Kortenaer | 1893 | 27 October 1894 | 17 December 1895 | 1920 | Rijkswerf, Amsterdam |
| Evertsen | 1893 | 29 September 1894 | 1 February 1896 | 1913 | Koninklijke Maatschappij De Schelde, Flushing |
| Piet Hein | 1893 | 16 August 1894 | 3 January 1896 | 1914 | Nederlandsche Stoomboot Maatschappij, Rotterdam |
Notes edit
- ^ In the Dutch navy the ships were classified as "pantserschepen" literally translated: armored ships.
Citations edit
References edit
- De Gelder, W.H.M. (1897), "Eenige Mededeelingen betreffende Hr. Ms. Pantserschepen Kortenaer, Evertsen en Piet Hein en Hr. Ms. Kruisers Holland, Friesland en Zeeland", Jaarverslag 1896-1897, Nederlandsche Vereeniging van Werktuig- en Scheepsbouwkundigen, p. XXX, 5–57
- S, C. (1897), "Het grwijzigd type Kortenaer", Marineblad, bijblad op de verslagen der Marine-Vereeniging, C. de Boer, Den Helder, pp. 212–219
- Gardiner, Robert; Chesneau, Roger; Kolesnik, Eugene M., eds. (1979). Conway's All the World's Fighting Ships, 1860-1905. London: Conway Maritime Press. ISBN 0851771335.
- Jane, Fred T. (1900). All The World's Fighting Ships. London: Sampson Low, Marston & Co.
- Jane, Fred T., ed. (1970). Jane's Fighting Ships 1905-6. New York: ARCO Publishing Company. SBN 668-02269-8.
- Raven, G.J.A., ed. (1988). De kroon op het anker: 175 jaar Koninklijke Marine (in Dutch). Amsterdam: De Bataafsche Leeuw. ISBN 90-6707-200-1.
External links edit
Media related to Evertsen class coastal defence ship at Wikimedia Commons- Description of class
