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Thursday 23 October 2014

Dutch ram turret Zr.Ms./Hr.Ms. Stier 1867-1925

Model Rijksmuseum Amsterdam, Netherlands. Probably the model gifted by the shipyard.


Call sign GQVL. Laid down at the shipyard of Laird Brother, Birkenhead, England on 7 June 1867, launched on 9 April 1868, trial on 18 August, rebuilt and rearmed at the navy yard of Amsterdam, Netherlands in 1882, laid up with armament removed in 1908,  used as a magazine at the navy yard at Willemsoord, Netherlands since 1915, sunk in the Malzwin near Den Helder, Netherlands by bombs thrown by an airplane during tests in 1925 while divers used explosives to remove some parts of her in 1930. Designed for home waters and never used for a voyage abroad. Building costs: contracted for hull, engines and so on ƒ 1.076.400, supervision ƒ 1.798, for her guns ƒ 58.272,00 make a total when she arrived at the Netherlands of ƒ 1.136.470.00.

Source: Memoriaal van de Marine. B.J. Tideman

The two deckhouses on deck fore and aft the gun turrets were connected by a gangway. The single funnel was placed above the last deckhouse. Her freeboard of 0,95 metres was in fact a huge failure and cause tremendous problems during a battle. With deckhouses which became smaller towards the gun turret were fire angles of 10 degrees created for firing forwards. Fitted out with a ram prow while the aft ship had a cruiser shaped stern with a balance rudder.

The two 2-cylinder trunk engines and four boilers delivered 2.257 hp making a maximum speed of 12,46 miles possible. Originally rigged, which was removed to improve her seaworthiness. She was able to turn around in a circle with a diameter of 150 metres in 03.35 minutes with her engines working contrariwise.

Source: Memoriaal van de Marine. B.J. Tideman

With a displacement of 2.112 tons were her dimensions 59,43 )on loadline between perpendiculars)-62,48 (over all without rudder) x 11,58 (outside on armour) x 4,57 (fore maximum loaded) 4,87 (aft maximum loaded)x 5,08 (double bottom-lower part beams amidships)-6,20 (hold amidships lower part keel-upper side main deck) metres. Lower part of portholes of the turret above the water level with maximum loaded draught 2,00 metres.

The armour consisted of a 7,6-15,2cm thick belt, a 1,9-2,5cm thick belt while gun turrets and conning tower were protected by respectively 20m3-28cm and 11,4cm thick armour.

The original armament consisted of 1x2-rifled muzzle loading guns in a turret which could be turned a complete circle in one minute with the used of steam or 11 minutes with manual force. In 1882 was she completely rearmed and now fitted out with 1-28cm gun, 5-3,7xm guns and 2-3,7cm revolver guns. Originally numbered her crew 110 men, later 137 men.