De Zeven Provinciën-class frigate

	HNLMS Tromp
Class overview
Name	De Zeven Provinciën class
Builders	Damen Schelde Naval Shipbuilding
Operators	Royal Netherlands Navy
Preceded by	Tromp class; Jacob van Heemskerck class;
Succeeded by	Future Air Defender (cancelled)
Cost	€600 million ($680 million) per unit
In commission	2002–present
Completed	4
Active	4
General characteristics
Type	Air-defense and command frigate
Displacement	6,050 tonnes (full load)
Length	144.24 m (473 ft 3 in)
Beam	18.80 m (61 ft 8 in)
Draught	5.18 m (17 ft 0 in)
Installed power	4 × Wärtsilä-Deutz D620 V12 diesel-generators, 1,680 kW (2,250 hp) each
Propulsion	Combined diesel or gas; 2 × Wärtsilä 16 V26 marine diesel engines, 5.1 MW (6,800 hp) each; 2 × Rolls-Royce Marine Spey SM 1A gas turbines, 19.5 MW (26,100 hp) each; 2 × propeller shafts, 5-bladed controllable pitch propellers;
Speed	30 knots (56 km/h; 35 mph)
Range	4,000 nmi (7,400 km; 4,600 mi) at 18 knots (33 km/h; 21 mph)
Complement	30 officers, 202 ratings
Sensors &; processing systems	Thales Nederland SMART-L long-range air and surface surveillance radar; Thales Nederland APAR air and surface search, tracking and guidance radar (I band); DECCA NAV navigation radar; Thales Nederland Scout (Low-probability-of-intercept) surface search/navigation radar; Thales Nederland Sirius IRST long-range infrared surveillance and tracking system; Thales Nederland Mirador optical surveillance and tracking system; Atlas Elektronik DSQS-24C hull-mounted sonar; MK XII IFF system;
Electronic warfare; & decoys	2 × Thomson Racal Sabre ECM suite; 4 × Sippican Hycor SRBOC Mk 36 launcher; 1 × AN/SLQ-25 Nixie torpedo decoy;
Armament	Guns:; 1 × Oto Melara 127 mm/54 dual-purpose gun; 2–4 × Browning M2 12.7 mm machine guns; 4–6 × FN MAG 7.62 mm machine guns; 2 × Goalkeeper CIWS; Missiles:; 40-cell Mk 41 strike-length vertical launching system; SM-2 IIIA surface-to-air missiles (typically 32 carried); Evolved SeaSparrow missiles (quad-packed, typically 32 carried); Tomahawk cruise missiles.; 8 × Harpoon anti-ship missiles; 2 × twin Mk 32 Mod 9 torpedo launchers with Mk 46 Mod 5 torpedoes;
Aircraft carried	1 × NH90 NFH helicopter
Aviation facilities	Hangar and flight deck for 1 medium-sized helicopter

The De Zeven Provinciën-class is a ship class of four air-defence and command frigates (Dutch: Luchtverdedigings- en commandofregatten; LCF) that are in service with the Royal Netherlands Navy. The ships are similar to the German Sachsen-class frigates in role and mission, and use the same sensors and armament for the air defence task.

Class overview
HNLMS Tromp
Name	De Zeven Provinciën class
Builders	Damen Schelde Naval Shipbuilding
Operators	Royal Netherlands Navy
Preceded by	Tromp class Jacob van Heemskerck class
Succeeded by	Future Air Defender (cancelled)
Cost	€600 million ($680 million) per unit
In commission	2002–present
Completed	4
Active	4
General characteristics
Type	Air-defense and command frigate
Displacement	6,050 tonnes (full load)
Length	144.24 m (473 ft 3 in)
Beam	18.80 m (61 ft 8 in)
Draught	5.18 m (17 ft 0 in)
Installed power	4 × Wärtsilä-Deutz D620 V12 diesel-generators, 1,680 kW (2,250 hp) each
Propulsion	Combined diesel or gas 2 × Wärtsilä 16 V26 marine diesel engines, 5.1 MW (6,800 hp) each 2 × Rolls-Royce Marine Spey SM 1A gas turbines, 19.5 MW (26,100 hp) each 2 × propeller shafts, 5-bladed controllable pitch propellers
Speed	30 knots (56 km/h; 35 mph)
Range	4,000 nmi (7,400 km; 4,600 mi) at 18 knots (33 km/h; 21 mph)
Complement	30 officers, 202 ratings
Sensors & processing systems	Thales Nederland SMART-L long-range air and surface surveillance radar Thales Nederland APAR air and surface search, tracking and guidance radar (I band) DECCA NAV navigation radar Thales Nederland Scout (Low-probability-of-intercept) surface search/navigation radar Thales Nederland Sirius IRST long-range infrared surveillance and tracking system Thales Nederland Mirador optical surveillance and tracking system Atlas Elektronik DSQS-24C hull-mounted sonar MK XII IFF system
Electronic warfare & decoys	2 × Thomson Racal Sabre ECM suite 4 × Sippican Hycor SRBOC Mk 36 launcher 1 × AN/SLQ-25 Nixie torpedo decoy
Armament	Guns: 1 × Oto Melara 127 mm/54 dual-purpose gun 2–4 × Browning M2 12.7 mm machine guns 4–6 × FN MAG 7.62 mm machine guns 2 × Goalkeeper CIWS Missiles: 40-cell Mk 41 strike-length vertical launching system SM-2 IIIA surface-to-air missiles (typically 32 carried) Evolved SeaSparrow missiles (quad-packed, typically 32 carried) Tomahawk cruise missiles. 8 × Harpoon anti-ship missiles 2 × twin Mk 32 Mod 9 torpedo launchers with Mk 46 Mod 5 torpedoes
Aircraft carried	1 × NH90 NFH helicopter
Aviation facilities	Hangar and flight deck for 1 medium-sized helicopter