Sagitta (ship, 1958)

Sagitta

Ship data flag  Germany Ship type Rear catcher home port Bremerhaven Owner Friedrich Busse & Co. Shipyard Rickmers shipyard, Bremerhaven Build number 302 Launch October 23, 1957 takeover January 7, 1958

Ship dimensions and crew length 67.27 m ( Lüa ) 57.60 m ( Lpp ) width 9.60 m Side height 4.90 m Draft Max. 4.32 m measurement 720 GRT, later 758 GRT

Machine system machine Gas turbine, later 4-stroke diesel engine Machine performance 2,000 PS (1,471 kW) Top speed 14.0 kn (26 km / h) propeller Controllable pitch propeller

The Sagitta fishing vessel was the world's first stern catcher with gas turbine propulsion . The name Sagitta means the arrow in Latin .

history

The ship was commissioned in 1955 by the Bremerhaven-based company Friedrich Busse & Co. In 1885, they commissioned the first German fish steamer , also called Sagitta .

The Sagitta was launched on October 23, 1957 as hull number 302 at the Bremerhaven-based Rickmers shipyard and was completed on January 7, 1958. After being converted to a motor trawler in 1962, Busse sold the ship to the Bremerhaven shipping company N. Ebeling in 1964. They sold the trawler on January 16, 1974 to the Ettina SNC Commercio Ittico E. Ortufrute shipping company from Commacio in Italy.

technology

After the successful construction of the first stern catcher Fairtry in 1954, ships of this type with diesel engines quickly replaced the fish steamers in the 1950s. After Heinrich Meins , the first German stern catcher, put into service in 1957 , the Sagitta was the third German ship of this type. The construction of side catchers ended in Germany in 1961.

However, the ship became famous for its innovative propulsion system, which was manufactured by the Hamburg turbine factory in Nuremberg. The five-stage gas turbine, also known as the Pescara plant, with two free-piston gas generators, was developed in France and was distinguished by its efficiency that is twice as good as that of the conventional gas turbine. To save the reverse turbine for the maneuver operation, Sagitta with Atlas was KaMeWa - pitch propellers equipped, in addition, also was wave generator installed. Ultimately, this concept could not prevail. It remained with this one gas turbine trawler, which was rebuilt in 1962 and received a Deutz four-stroke engine with 2000 hp.

literature

• HJ Heise, B. Langensiepen, E. Hoffmann: F. Busse . In: Nautilus . Vol. 2, No. 6 December 1974, pp. 320-344 .
• H. Heinsohn, H. Ricklefs: Gas turbine trawler "Sagitta" . In: Hansa . Vol. 95, No. 8/9 , March 1958, pp. 375-383 .
• “Sagitta” rear trawler with gas turbine drive . In: Shipbuilding Technology . Vol. 8, No. October 10 , 1958, p. 532-535 .

Individual evidence

1. ^ Lloyd's Register 1958/59