Gerard Callenburgh-class destroyer

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HNLMS Isaac Sweers.jpg
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: 1604 tons standard
2228 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 type boilers
45,000 hp
Speed: 37.5 kn (69.5 km/h)
Range: 3,200 nmi (5,900 km) at 15 kn (28 km/h)
Complement: 158
Armament: 5 × 120 mm (4.7 in) guns (2 × 2 & 1 × 1)
4 × 40 mm (1.6 in) AA guns
4 × .5 in (13 mm) machine guns
8 × 533 mm (21.0 in) torpedo tubes (2 × 4)

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.

Design[edit]

HNLMS Isaac Sweers as completed in 1941

These ships were larger than the preceding Admiralen-class destroyers. As those ships were outclassed by contemporary Japanese destroyers, the armament was increased to 5 guns with twin mounts in 'A' and 'Y' positions and a single gun in 'X' position. The torpedo outfit was also increased to two quadruple tubes. Isaac Sweers was completed in a British yard, with British armament and fire control equipment. She was fitted out with six 4 inch guns arranged in double turrets, four 40mm Bofors and eight 0.5 in machine guns, as well as the customary eight torpedo tubes.

Service[edit]

Only two ships were ever completed. Tjerk Hiddes was launched prior to the invasion, but was scuttled at Rotterdam to prevent her from falling into German hands. The Germans raised her, but found it impossible to repair her, so the wreckage was scrapped. Philips Van Almonde was demolished on the slipway after several attempts to launch her to be sailed to England had failed.

Gerard Callenburgh was also scuttled, but the Germans were able to salvage her. She was subsequently completed by Blohm & Voss, retaining most of the Dutch armament and equipment, and was commissioned as ZH1 on 11 October 1942. She spent most of her career on trials in the Baltic but was transferred to Western France via the English Channel in November 1943. She was one of the German ships sent to intercept the Operation Neptune invasion armada, but they were themselves engaged by a squadron consisting of HMS Tartar, HMS Ashanti, HMS Eskimo, HMS Javelin, HMCS Haida, HMCS Huron and ORP Błyskawica). ZH1 was torpedoed and badly damaged by Ashanti on 9 June 1944, and was scuttled with the loss of 33 men.

Isaac Sweers was, unlike her sister Philips Van Almonde, successfully launched and then towed to England by the tug Zwarte Zee. She was completed in England by J Thornycroft using British armament and fire control equipment. She went on to serve in the Mediterranean Sea with Force H. In December 1941, together with HMS Sikh, HMS Maori and HMS Legion she sank the Italian cruisers Alberico da Barbiano and Alberto di Giussano in the Battle of Cape Bon. She then briefly served in the Indian Ocean with the Eastern Fleet. She was sunk by German submarine U-431 commanded by Wilhelm Dommes on 13 November 1942 in the Western Mediterranean, with the loss of 108 men.

Ships[edit]

Name Builder Laid down Launched Commissioned Fate
Gerard Callenburgh RDM Rotterdam 12 October 1938 12 October 1939 11 October 1942 Scuttled but salvaged. Commissioned as the German ZH-1. Sunk on 9 June 1944.
Isaac Sweers KM de Schelde 26 November 1938 16 March 1940 29 May 1941 Towed to England and completed. Sunk on 13 November 1942.
Tjerk Hiddes RDM Rotterdam 1 October 1938 12 October 1939 - Scuttled on 15 May 1940. Wreck scrapped by the Germans.
Philips van Almonde KM de Schelde 2 March 1939 - - Demolished on the slipway on 17 May 1940. Wreck scrapped by the Germans.

Notes[edit]

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