Gerard Callenburgh-class destroyer

	Isaac Sweers, underway in 1942
Class overview
Name	Gerard Callenburgh class
Operators	Royal Netherlands Navy; Kriegsmarine;
Preceded by	Admiralen class
Succeeded by	Holland class
Built	1937–1940
In commission	1941–1944
Planned	4
Completed	2
Lost	2
General characteristics as designed (see text)
Type	Destroyer
Displacement	1,604 tons standard; 2,228 tons full load;
Length	107 m (351 ft 1 in)
Beam	10.6 m (34 ft 9 in)
Draft	2.8 m (9 ft 2 in)
Propulsion	2 shaft, Parsons geared turbines; 3 Yarrow boilers; 45,000 hp (34,000 kW);
Speed	37.5 knots (69.5 km/h; 43.2 mph)
Range	3,200 nmi (5,900 km; 3,700 mi) at 15 kn (28 km/h; 17 mph)
Complement	158
Armament	5 × 120 mm (4.7 in) guns (2 × 2 & 1 × 1); 4 × 40 mm (1.6 in) AA guns; 4 × 12.7 mm (0.50 in)/62 Vickers Mk III machine guns; 8 × 533 mm (21.0 in) torpedo tubes (2 × 4); Mines & depth charges; (Note: When Gerard Callenburgh was taken by the Germans [ZH1] she had a different armament, and Isaac Sweers was completed in England);

The Gerard Callenburgh class were a group of four destroyers ordered for the Royal Netherlands Navy just before World War II. Two ships were completed - Gerard Callenburgh by the Germans after being captured and Isaac Sweers in Britain after being evacuated as the Netherlands fell to the Nazis.

Class overview
Isaac Sweers, underway in 1942
Name	Gerard Callenburgh class
Operators	Royal Netherlands Navy Kriegsmarine
Preceded by	Admiralen class
Succeeded by	Holland class
Built	1937–1940
In commission	1941–1944
Planned	4
Completed	2
Lost	2
General characteristics as designed (see text)
Type	Destroyer
Displacement	1,604 tons standard 2,228 tons full load
Length	107 m (351 ft 1 in)
Beam	10.6 m (34 ft 9 in)
Draft	2.8 m (9 ft 2 in)
Propulsion	2 shaft, Parsons geared turbines 3 Yarrow boilers 45,000 hp (34,000 kW)
Speed	37.5 knots (69.5 km/h; 43.2 mph)
Range	3,200 nmi (5,900 km; 3,700 mi) at 15 kn (28 km/h; 17 mph)
Complement	158
Armament	5 × 120 mm (4.7 in) guns (2 × 2 & 1 × 1) 4 × 40 mm (1.6 in) AA guns 4 × 12.7 mm (0.50 in)/62 Vickers Mk III machine guns 8 × 533 mm (21.0 in) torpedo tubes (2 × 4) Mines & depth charges (Note: When Gerard Callenburgh was taken by the Germans [ZH1] she had a different armament, and Isaac Sweers was completed in England)