Evertsen-class coastal defence ship

HNLMS Evertsen at sea.
Class overview
Name:	Evertsen class
Builders:	Rijkswerf, Amsterdam Koninklijke Maatschappij De Schelde, Flushing Nederlandsche Stoomboot Maatschappij, Rotterdam
Operators:	Royal Netherlands Navy
Succeeded by:	Koningin Regentes class
Completed:	3
General characteristics
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)
Complement:	263
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 of the Royal Netherlands Navy. The class comprised Evertsen, Piet Hein and Kortenaer.

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. The main armament of the ships where three 8.2 in (21 cm) guns in a double and single turret. Secondary armament included two single 15 cm (5.9 in) guns and six single 7.5 cm (3.0 in) guns.