HNLMS Marten Harpertszoon Tromp (Dutch; Flemish: Hr.Ms. Marten Harpertszoon Tromp) was a unique coastal defence ship of the Royal Netherlands Navy built by the Rijkswerf in Amsterdam.
The ship was 100.78m (330.64feet) long, had a beam of 15.19abbr=onNaNabbr=on, a draught of 5.69abbr=onNaNabbr=on, and had a displacement of 5,210 ton. The ship was equipped with 2 shaft reciprocating engines, which were rated at 6400ihp and produced a top speed of 16.5kn.
The ship had a belt armour of 6order=flipNaNorder=flip, 8order=flipNaNorder=flip barbette armour and turret armour.
The main armament of the ships were two 9.4order=flipNaNorder=flip single turret guns. Secondary armament included four single 15cm (06inches) guns and eight 7.5cm (03inches) single guns.[1]
Tromp was launched on 15 June 1904 at the Rijkswerf in Amsterdam. On 5 April 1906 she was commissioned by Captain Koster as the first commander of the ship. The same year on 25 June she made a visit to Norway for an official visit to the ship by Haakon VII of Norway.[2]
10 August 1909 Tromp together with and departed from Batavia to China, Hong Kong, Japan and the Philippines to show the flag.[3]
On 2 March 1920 she and departed from Den Helder for a four month journey to Asia to show the flag. They visited the ports of Singapore, Saigon, Hong Kong, Shanghai, Kobe and Manila.[4]
On 17 November 1923, the Dutch cargo ship put into port at Bastia, Corsica, France, on fire. Marten Harpertszoon Tromp scuttled the burning ship.[5]
From 21 June to 30 July 1926 the ship together with, torpedo boats Z 7 and Z 8 and submarines and departed from Den Helder to the Baltic. During the trip they visited the ports of Kiel, Göteborg and Trondheim.[6]
The ship was decommissioned in 1927.[1]