Svealand type
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The Svealand type was a series of two identical ore ships. The ships were built in 1925 by the German shipyard in Finkenwerder . The largest cargo ships in the world were built in their segment for around 25 years.
history
The two ships were commissioned by the Swedish shipowner Dan Broström . The design was in the hands of chief engineer Carl Kielhorn. The shipyard delivered the two units to Broström's shipping company Ångfartygs A / B Tirfing in Gothenburg in April and June 1925. The ship management was carried out by SG Janson.
The ships were designed for a 20-year long-term charter, which was closed in 1922, in which they were supposed to transport iron ore from Cruz Grande in Chile through the Panama Canal to the Bethlehem Steel mill in Sparrows Point near Baltimore and bring oil to Peru on the return voyage. However, due to the high canal fees for oil tankers, the option to transport oil was dropped.
The Amerikaland was during the Second World War on February 3, 1942 on a ballast voyage from Sparrows Point to Cruz Grande in position 36.36 ° N; 074.10 ° W sunk by torpedoes from the German U-106 submarine. The Svealand continued the original charter until the end of the war and made several trips from Narvik to Antwerp from December 27, 1945. In the summer of 1946, the Svealand resumed its original service between Peru and the USA until the end of the charter in the spring of 1949. This was followed by trips from Narvik to various European ports and from and Narvik to the USA. In 1951 the Svealand was modernized by Götaverken in Gothenburg and fitted with new Götaverken two-stroke main engines. After the renovation, the Svealand continued her ore voyages from Narvik until the spring of 1969.
In May 1969, Svealand was sold to Eckhard & Co. in Hamburg for demolition and launched in Hamburg. However, Eckhardt & Co. sold the ship to Chinese abandoners and transferred the ore ship to the Astra Atlantica Armadora company in Panama for its last voyage and renamed it Svea . On October 12, 1969, the Svea left Casablanca and finally arrived in China in November 1969 for demolition.
technology
The ships were designed as ore oil freighters in Isherwood longitudinal frame construction. The aft deckhouse was arranged above the engine room, the front deck structure with the wheelhouse was at the rear end of the forward third of the ship. The three cargo hold division with three raised ore cargo holds that were only ten meters wide and could be loaded and unloaded through nine hatches. Large ballast and oil tanks were located below and next to the holds. The steel folding hatch covers were opened and closed with the ship's own loading gear. The design of the hatches and holds resulted in extremely short port circuits. Loading in Chile usually only took around two hours - the record was only 45 minutes - and unloading at Sparrows Point took around a day, the record being around 22 hours.
The shipyard used two B&W eight-cylinder four-stroke diesel engines, each built under license by AEG in Berlin, with a continuous output of 3200 hp or 3900 hp maximum output, which delivered their power to two fixed propellers and a speed of around 12 to 14 knots as drive motors made possible. The ships were already equipped with electrical lighting and radio systems.
The ships
| Svealand type | ||||
|---|---|---|---|---|
| Building name | Construction number |
IMo number |
Launched completion |
Renaming and whereabouts |
| Svealand | 49 | 5346526 | January 24, 1925 April 1925 |
1969 Svea , scrapped in China from November 1969 |
| Amerikaland | 50 | - | May 20, 1925 June 29, 1925 |
Sunk on February 3, 1942 |
literature
- The largest Motor Cargo Ship . In: The Motor Ship . Vol. VI, No. 61 . Temple Press, London April 1925, pp. 4-6 .
- Roy Fenton: Tramp Ships: An Illustrated History , Seaforth Publishing, 2013, p. 164.
Individual evidence
- ↑ Lorenz: Oberingenieur Carl Kielhorn , In: Schiffbau, Schiffahrt und Hafenbau , Vol. 33, No. 6, Deutsche Verlagswerke Strauss, Vetter & Co., Berlin, March 1932, pp. 95–96.
- ^ Martin Stopford: Maritime Economics . Routledge, Oxon, New York 1997, ISBN 0-415-15310-7 , pp. 413 .
- ↑ Laurence Dunn: mv SVEALAND, 1925, Sweden , In: Merchant ships of the world 1910-1929 in color , Macmillan, London, 1975, pp. 195-196.
- ^ The Operation of Motor Cargo Ships , In: The British Motor Ship , Volume 16 1935, p. 125.
- ^ Lloyd's Register of Shipping 1926/27, Vol. I, London, 1927.