Of the Herluf Trolle-class with as sister ships the Herluf Trolle and the Peder Skram.
Laid down at the Royal Naval Dockyard at Copenhagen, Denmark on 20 October 1900, launched on 9 May 1903, commissioned on 31 May 1905 and decommissioned on 17 October 1936. She was that same year used as a target ship for air attacks.
With a displacement of 3,700 tons were her dimensions 82,86 x 15,38 x 5,09 metres. Her crew numbered 265 men. The two sets triple expansion engines and 6 Thornycroft boilers while driving two screws delivered 4,500 hp allowed a maximum speed of 15,8 knots while with a speed of 9 knots she had a range of 2,500 nautical miles and a coal bunker capacity of maximum 255 tons. The armour belt was 7” deep of which 3,5” above the waterline ending 20 feet from the bow’, 7” amidships and 4” side aft, and a 3” thick armoured deck 3 above the waterline, 7” turrets, conning tower and bulk head and 6” casemates. The original armament consisted of 2x1-24cm guns, 4x1-15cm guns, 10-5,7cm guns, 8-3,7cm guns and in the bow one 18” submerged torpedo tube and amidships on each side one 18” submerged torpedo tube. In 1905 the armament was added by 6-4,7cm guns, 5 years later replaced by 2-5,7cm guns. In 1916 finally were 10 of the 5,7cm guns by 6-7,5cm guns. Trials in 1922 to fit her out with a HM 1 seaplane were not successful. She had none funnel band.
Note
1. Named after the Danish officer Johan Olfert Fischer (Copenhagen 4 August 1747-Copenhagen 18 February 1829) who commanded the Danish-Norwegian fleet during the British attack by Lord Horatio Nelson on Copenhagen and the battle on 2 April.
