Evertsen-class_coastal_defence_ship

<i>Evertsen</i>-class coastal defence ship

Evertsen-class coastal defence ship

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The Evertsen class or Kortenaer class was a class of coastal defense ships[lower-alpha 1] of the Royal Netherlands Navy.[1] The class comprised Evertsen, Piet Hein and Kortenaer.[3]

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Design

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

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

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Notes

  1. In the Dutch navy the ships were classified as "pantserschepen" literally translated: armored ships.

Citations

  1. [1]
    Raven (1988), p. 175.
  2. [2]
    Gardiner, Chesneau and Kolesnik (1979), p. 374.
  3. [3]
    Jane (1900), p. 158.
  4. [4]
    Jane (1970), p. 314.
  5. [5]
    De Gelder 1897, p. 21.
  6. [6]
    De Gelder 1897, p. 71.
  7. [7]
    S 1897, p. 213.

References

  • 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.
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