 The " Rottorschiff" Buckau, in 1923. A Flettner ship is a ship designed according to the ideas of German engineer Anton Flettner. The underlying principle is the Magnus effect, where a spinning body in a moving airstream experiences a force perpendicular to the direction of the airstream. Image File history File linksMetadata No higher resolution available. ...
Image File history File linksMetadata No higher resolution available. ...
Image File history File links Size of this preview: 800 × 578 pixel Image in higher resolution (4218 × 3046 pixel, file size: 1. ...
Image File history File links Size of this preview: 800 × 578 pixel Image in higher resolution (4218 × 3046 pixel, file size: 1. ...
Italian Full rigged ship Amerigo Vespucci in New York Harbor, 1976 A ship is a large watercraft capable of deep water navigation. ...
Anton Flettner (November 1, 1885 – December 29, 1961) was a German aviation engineer and inventor. ...
An image illustrating the Magnus effect on a ball The Magnus effect is the name given to the physical phenomenon whereby an objects rotation affects its path through a fluid, in particular, air. ...
Flettner's spinning bodies were vertical cylinders; the basic idea was that thanks to the Magnus effect, small motors powering a ship via rotating cylinders could propel it more efficiently than if they had driven a conventional propeller. These types of propulsion cylinders are now commonly called Flettner rotors. To meet Wikipedias quality standards, this article or section may require cleanup. ...
His first idea was to produce the propulsion force by using a belt running round two cylinders, but after further thought he abandoned this idea and decided that the cylinders would be better rotated by individual motors. Flettner applied for a German patent for the rotor ship on 16th September, 1922. Year 1922 (MCMXXII) was a common year starting on Sunday (link will display full calendar). ...
Assisted by Albert Betz, Jacob Ackeret and Ludwig Prandtl, Flettner constructed an experimental rotor vessel, and in October 1924 the Germania Werft finished construction of a large two-rotor ship named Buckau. The vessel was a refitted schooner which carried two cylinders (or rotors) about 15 metres high and 3 metres in diameter, driven by an electric propulsion system of 50 hp power. Albert Betz (25 December 1885 - 16 April 1968) was a German Engineer and a pioneer of wind energy technology. ...
Ludwig Prandtl Ludwig Prandtl (4 February 1875 - 15 August 1953) was a German physicist. ...
1924 (MCMXXIV) was a leap year starting on Tuesday (link will display the full calendar). ...
Two-masted fishing schooner A schooner (IPA: ) is a type of sailing vessel characterized by the use of fore-and-aft sails on two or more masts. ...
Following completion of its trials, the Buckau set out on her first voyage in February 1925, from Danzig to Scotland across the North Sea. It was discovered that the rotors did not give the slightest cause for concern in even the stormiest weather, and that the rotor ship could tack (sail into the wind) at 20-30 degrees, while the vessel with its original sail rig could not tack closer than 45 degrees to the wind. 1925 (MCMXXV) was a common year starting on Thursday (link will take you to calendar). ...
For alternative meanings of Gdańsk and Danzig, see Gdansk (disambiguation) and Danzig (disambiguation) The title given to this article is incorrect due to technical limitations. ...
The North Sea is a sea of the Atlantic Ocean, located between the coasts of Norway and Denmark in the east, the coast of the British Isles in the west, and the German, Dutch, Belgian and French coasts in the south. ...
Tack is a term, that depending on its application has several different meanings. ...
On 31st March, 1926, the Buckau, now renamed Baden Baden after the German spa town, sailed to New York via South America, arriving in New York harbor on 9th May. NY redirects here. ...
However, the rotor system was less efficient than conventional engines, and Flettner turned his attention to other projects and the rotors were dismantled. Baden Baden was destroyed in a Caribbean storm in 1931. West Indian redirects here. ...
See also
A turbosail is a device that uses generated lift to propel a boat. ...
External links |
There are 1 more (non-authoritative) comments on this page
Feeds |
Contact