SMS Arcona (1858)
SMS Arcona was the lead ship of the Arcona class of steam frigates built for the Prussian Navy in the late 1850s and early 1860s. The class comprised five ships, and were the first major steam-powered warships ordered for the Prussian Navy. DesignIn the immediate aftermath of the First Schleswig War against Denmark, Prince Adalbert began drawing up plans for the future of the Prussian Navy; he also secured the Jade Treaty that saw the port of Wilhelmshaven transferred to Prussia from the Duchy of Oldenburg, and which provided the Prussian fleet with an outlet on the North Sea. Adalbert called for a force of three screw frigates and six screw corvettes to protect Prussian maritime trade in the event of another war with Denmark. Design work was carried out between 1854 and 1855, and the first two ships were authorized in November 1855; a further pair was ordered in June 1860, and the final member of the class was ordered in February 1866.[1][2] Arcona was 71.95 meters (236 ft 1 in) long overall and had a beam of 13 m (42 ft 8 in) and a draft of 5.55 m (18 ft 3 in) forward. She displaced 1,928 metric tons (1,898 long tons) as designed and 2,391 t (2,353 long tons) at full load. The ship had short forecastle and sterncastle decks. Her superstructure consisted primarily of a small deckhouse aft. She had a crew of 35 officers and 345 enlisted men.[3] Her propulsion system consisted of a single horizontal single-expansion steam engine driving a single screw propeller, with steam supplied by four coal-burning fire-tube boilers. Exhaust was vented through a single funnel located amidships. Arcona was rated to steam at a top speed of 8 knots (15 km/h; 9.2 mph), but she significantly exceeded this speed, reaching 12.4 knots (23.0 km/h; 14.3 mph) from 1,365 metric horsepower (1,346 ihp). The ship had a cruising radius of about 1,150 nautical miles (2,130 km; 1,320 mi) at a speed of 11 knots (20 km/h; 13 mph). To supplement the steam engine on long voyages abroad, she carried a full-ship rig with a total surface area of 2,200 m2 (24,000 sq ft).[3] The screw could be retracted while cruising under sail.[4] Arcona was armed with a battery of six 68-pounder guns and twenty 36-pounder guns. By 1870, she had been rearmed with a uniform battery of seventeen 15 cm (5.9 in) RK L/22 guns; later in her career, the number of these guns was reduced to eight.[3] Service historyThe keel for Arcona was laid down at the Königliche Werft (Royal Dockyard) in Danzig in 1855. She was launched on 19 May 1858. After completing fitting out work, she was commissioned into active service on 15 April 1859.[5] NotesReferences
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