The Kortenaer class was a class of frigates of the Royal Netherlands Navy. They were built to be a general purpose frigate; able to combat all surface, submarine and aircraft targets. Like some of the other frigates of the 1970s and 1980s, they featured a COGOG (Combined gas or gas) propulsion system. Ten were built by de Schelde in Flushing and two by Wilton-Fijenoord in Schiedam between 1978 and 1982. Only 10 served with the Royal Netherlands Navy: two were sold to Greece while still under construction and replaced by two Jacob van Heemskerck class frigates which are basically an AAW variant of the Kortenaer class. The Greek frigates were renamed the Elli class.
Eight similar ships were built by Germany during the same period in the Bremen class.
| General characteristics | |
|---|---|
| Type: | Frigate |
| Displacement: | 3,500 long tons (3,600 t) standard 3,800 long tons (3,900 t) full load |
| Length: | 130 m (426 ft 6 in) |
| Beam: | 14.4 m (47 ft 3 in) |
| Draft: | 4.4 m (14 ft 5 in) |
| Propulsion: | Combined gas or gas (COGOG) system: 2 × Rolls Royce Tyne RM1C gas turbines, 4,900 shp (3,700 kW) each 2 × Rolls Royce Olympus TM3B gas turbines, 25,700 shp (19,200 kW) each (boost) 2 shafts |
| Speed: | 20 knots (37 km/h; 23 mph) cruise 30 knots (56 km/h; 35 mph) maximum |
| Endurance: | 4,700 nautical miles @ 16 knots (8,700 km @ 30 km/h) |
| Complement: | 176–196 |
| Armament: |
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| Aircraft carried: | 2 × Sea Lynx helicopters (1 in peace-time) |
