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Drzewiecki Stepan Karlovic

( Russian researcher and inventor)

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Biography Drzewiecki Stepan Karlovic
photo Drzewiecki Stepan Karlovic
In 1879 had been launched two submarine design D. (single and quad), arm. mined devices and driven by muscle power through the treadle. On the second boat was used periscope. In 1880 he developed the original design of submarines to Electric. engine. Together with A. N. Krylov proposed a submarine with a displacement of 120 tons of steam engines, calculated. 12 people. (project won first prize in Paris in 1898). In 1897 D. invented carts, mine apparatus (pipeless torpedo apparatus for PL), significantly differ from those in other fleets. In 1907 the project D. built submarines 'Postal' with a single gasoline engine for the carts, and nadvod. progress. D. first constructed in Russia, mecha. Automatic device for. laying the path of the ship on the map. D. known as a designer alongside a. Screws. He developed the principle of the optimum angle between the wing and the conditions for stability when flying airplanes. At the World Congress of Aeronautics in 1889, his theory has received general approval. In 1882 D. was elected vice-chairman vozduhoplavat. Department Eng. Tekhniki. Society. In 1892 he moved to Paris, where he undertak. activities.

Compositions:

On the air resistance applied to the flight of birds and airplanes. Spb., 1887;

Airplanes in the nature. Experience a new theory of flight. Spb., 1887;

Theoretical solution to the problem of soaring birds. Spb., 1891;

Defining elements propeller .- 'Mor. Collection ', 1892,? 9;

The theory of propellers and the way they calculate. Kiev. 1910.


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