HNLMS Evertsen at sea.
Class overview
NameEvertsen class
Builders
Operators Royal Netherlands Navy
Succeeded byKoningin Regentes class
In service1895-1920
Completed3
Retired3
General characteristics
TypeCoastal defense ship
Displacement3,464 tons
Length86.2 m (282 ft 10 in)
Beam14.33 m (47 ft 0 in)
Draught5.23 m (17 ft 2 in)
Propulsion4,700 hp (3,500 kW), two shafts
Speed16 knots (30 km/h)
Complement263
Armament
  • 2 × 8.2 in (21 cm) (1 × 2)
  • 1 × 8.2 in (21 cm) (1 × 1)
  • 2 × 15 cm (5.9 in) (2 × 1)
  • 6 × 7.5 cm (3.0 in) (6 × 1)
  • 8 × 1-pounder (8 × 1)
  • 3 × 45 cm (18 in) torpedo tubes
Armour
  • 6 in (15 cm) belt
  • 9.5 in (24 cm) barbette

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

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. 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).

The ships had belt armour of 6 in (15 cm) and 9.5 in (24 cm) barbette armour.

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. The third was behind a shield on the stern.[1] 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.[2] 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.[3]

Secondary armament included two single 15 cm (5.9 in) guns and six single 7.5 cm (3.0 in) guns.

Construction

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

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

Citations

  1. ↑ De Gelder 1897, p. 21.
  2. ↑ De Gelder 1897, p. 71.
  3. ↑ 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, p. 212-219
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