Evertsen-class coastal defence ship

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Hr. Ms. Evertsen (pantserschip).jpg
HNLMS Evertsen at sea.
Class overview
NameEvertsen class
Builders
OperatorsNaval Jack of the Netherlands.svg  Royal Netherlands Navy
Succeeded by Koningin Regentes class
Built1893-1896 [1]
In service1895-1920
Completed3
Retired3
General characteristics [2]
Type Coastal 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)
Capacity289 tons of coal storage
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
  • 9.5 in (24 cm) turret
  • 2.25 in (5.7 cm) deck

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]

Contents

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

Construction data
NameLaid downLaunchedCommissionedDecommissionedShipyard
Kortenaer 189327 October 189417 December 18951920 Rijkswerf , Amsterdam
Evertsen 189329 September 18941 February 18961913 Koninklijke Maatschappij De Schelde , Flushing
Piet Hein 189316 August 18943 January 18961914 Nederlandsche Stoomboot Maatschappij, Rotterdam

Notes

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

Citations

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

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References