SMS Hansa (1872)
From Wikipedia, the free encyclopedia
Hansa in Kiel in the 1880s | |
| Class overview | |
|---|---|
| Operators | |
| Preceded by | König Wilhelm |
| Succeeded by | Preussen class |
| Completed | 1 |
| Scrapped | 1 |
| History | |
| Name | SMS Hansa |
| Builder | Kaiserliche Werft, Danzig |
| Laid down | 1868 |
| Launched | 26 October 1872 |
| Commissioned | 19 May 1875 |
| Stricken | 6 August 1888 |
| Fate | Broken up, 1906 |
| General characteristics | |
| Type | Armored corvette |
| Displacement | |
| Length | 73.50 m (241.1 ft) |
| Beam | 14.10 m (46.3 ft) |
| Draft | 5.74 m (18.8 ft) |
| Installed power | |
| Propulsion | |
| Sail plan | Ship rig, 1,760 m2 (18,900 sq ft) |
| Speed | 12 knots (22 km/h; 14 mph) |
| Range | 1,330 nmi (2,460 km; 1,530 mi) at 10 knots (19 km/h; 12 mph) |
| Boats & landing craft carried | 10 |
| Crew |
|
| Armament | 8 x 21 cm (8.3 in) L/19 guns |
| Armor |
|
SMS Hansa [a] was a German ironclad warship built in 1868–1875. She was the first ironclad built in Germany; all previous German ironclads had been built in foreign shipyards. She was named after the Hanseatic League, known in Germany simply as Hanse, Latinized Hansa. The ship was launched in October 1872 and commissioned into the German Imperial Navy (Kaiserliche Marine) in May 1875. Designed as for coastal bombardment, Hansa was classed as an armored corvette and armed with eight 21 cm (8.3 in) guns in a central battery.
Hansa saw little use in her first years of service, and only took part in fleet exercises in the 1875 training year. She made a major overseas cruise to Central and South America from 1878 to 1880, during which time she protected German nationals in the region during the War of the Pacific between Peru, Bolivia, and Chile. In 1884, it was found that her iron hull was badly corroded, which rendered the ship unfit for further active service. She was therefore removed from active duty and used for a variety of secondary roles. From 1884 to 1888, she served as a guard ship in Kiel, where she also trained engine and boiler room personnel. The ship also took part in further fleet exercises in 1885 and 1886. In poor condition by 1888, she was stricken from the naval register and used as a barracks ship in Kiel. She was moved to Mönkeberg in 1905, where she continued to train boiler room personnel until 1906, when she was sold to ship-breakers and dismantled for scrap.
General characteristics and machinery
Development of a small armored corvette began in 1861, shortly after the first ironclad warships entered service in the British and French fleets. The Prussians initially envisioned using the armored vessel to reduce coastal fortifications,[1] as the French ironclad floating batteries had done at the Battle of Kinburn in 1855.[2] Work on the concept proceeded slowly, and the Prussians initially purchased as series of ironclads from British and French shipyards. The design evolved over this period, eventually settling on a casemate ship similar to the British Edward Reed-designed HMS Pallas.[1]

Hansa was 71.73 meters (235.3 ft) long at the waterline and 73.50 m (241.1 ft) long overall. She had a beam of 14.10 m (46.3 ft) and a draft of 5.74 m (18.8 ft) forward and 6.80 m (22.3 ft) aft. The ship was designed to displace 3,950 metric tons (3,890 long tons; 4,350 short tons) at a normal loading, and up to 4,404 t (4,334 long tons; 4,855 short tons) at full load.[3] The ship's hull was formed with transverse iron frames and mixed iron and timber construction. The underwater portion of the hull was plated with copper to reduce fouling. It contained six watertight compartments.[4]
The German navy found the ship to be very stiff in her sea-keeping qualities. Steering was controlled by a single rudder. Hansa was very maneuverable and was easily controlled while under sail; under steam the ship remained highly maneuverable but control suffered. The ship's crew numbered 28 officers and 371 enlisted men. She carried a number of smaller boats aboard, including two launches, one pinnace, two cutters, one yawl, and one dinghy. The ship also carried an unknown number of picket boats and barges. Anti-torpedo nets were briefly fitted to the ship from 1885 to 1888.[4]
Hansa was powered by a single horizontal three-cylinder single-expansion steam engine built by AG Vulcan in Stettin. The engine drove a single three-bladed screw that was 6 m (20 ft) in diameter. Steam, at a pressure of at 2 standard atmospheres (200 kPa), was supplied by four trunk boilers in a single boiler room. The boilers were ducted into a single large funnel that could be retracted when the ship was operated under sail.[4] The powerplant was rated at 450 nominal horsepower with a top speed of 12 knots (22 km/h; 14 mph). On trials, her propulsion system managed 3,275 indicated horsepower (2,442 kW) and 12.7 knots (23.5 km/h; 14.6 mph). The ship carried 310 t (310 long tons; 340 short tons) of coal for the boilers, which enabled a maximum range of 1,330 nautical miles (2,460 km; 1,530 mi) at a cruising speed of 10 knots (19 km/h; 12 mph).[3] Hansa was fitted with a full sailing rig to supplement the steam engine, and it had a sail area of 1,760 m2 (18,900 sq ft).[4]
Armament and armor
Hansa was armed with a main battery of eight 21 cm RK L/19 hooped guns of 20.95-centimeter (8.25 in) caliber, each of which was provided with 110 rounds of ammunition. The guns were placed in a two-story arrangement amidships; four were mounted in a broadside casemate, two on either side of the ship.[4] The other four guns were mounted in casemates on the corners of the lower casemate, which gave the ship a degree of end-on fire capability.[5] The lower guns could depress to −5° and elevate to 13°; at maximum elevation, the guns could reach targets out to 3,200 m (3,500 yd). The upper guns had a wider range of elevation; they could depress to −8° and elevate to 14°. At maximum elevation, the guns had a range of 5,700 m (6,200 yd).[4]
Hansa's armor consisted of teak-backed wrought iron,[4] which was manufactured in Great Britain.[6] Her armored belt was 152 mm (6 in) thick amidships, where it protected the ship's vitals. On the bow and stern, the belt was reduced to 114 mm (4.5 in) in thickness. The entire belt was backed with 306 mm (12 in) of timber. The casemates were armored with 114 mm thick sloping iron plates. The lower battery casemate had 114 mm thick transverse armored bulkheads on either end of the side armor.[4]

