|Alexander Fedorovich Mozhaysky|
21 March 1825|
Rochensalm, Russian Empire (now Finland)
|Died||1 April 1890
St Petersburg, Russian Empire
|Service/branch||Imperial Russian Navy|
|Years of service||1841–1882|
|Awards||Order of St. Vladimir, 4th class
Order of Saint Stanislaus, 2nd class
Alexander Fedorovich Mozhaysky (also transliterated as Mozhayski, Mozhayskii and Mozhayskiy; Russian: Алекса́ндр Фёдорович Можа́йский) (March 21 [O.S. March 9] 1825 – 1 April [O.S. March 20] 1890) was an admiral in the Imperial Russian Navy, aviation pioneer, researcher and designer of heavier-than-air craft.
Mozhaysky was born in Rochensalm, in the Grand Duchy of Finland (current Kotka), southern Finland, then part of the Russian Empire. His father was an admiral in the Imperial Russian Navy, and Mozhaysky graduated from the Sea Cadet Corps in 1841. He spent the next seven years on voyages in the Baltic Sea and the White Sea on various vessels, and was commissioned as a lieutenant in 1849. He served with the Baltic Fleet from 1850 to 1852. In 1853, he was selected as a member of Vice Admiral Yevfimy Putyatin’s expedition to the Far East. In August 1853, he demonstrated a working model of a steam engine to various Japanese dignitaries at Nagasaki, from which Japanese inventor Tanaka Hisashige was later able to reverse engineer a Japanese version. In December 1854, he was shipwrecked at Heda, Shizuoka when the frigate Diana was sunk the 1854 Ansei-Tōkai earthquake. Mozhaysky assisted in the construction of the schooner Heda in 1855, which enabled the Russian delegation negotiating the Treaty of Shimoda to return home. Later in 1855, during the Crimean War, he served in the Gulf of Finland on the brig Antenor.
In 1858, Mozhaysky was selected to participate in an expedition to Khiva in Central Asia, and published an account of the Aral Sea and the Amu Darya River. He was awarded the Order of St Vladimir, 4th class, for his participation in this expedition. After his return, he was made a lieutenant-commander; however, he resigned his commission in 1863 with the downsizing of the Russian navy following the end of the Crimean War. From 1869 to 1876, he lived outside the city of Vinnytsia in what is now the Ukraine.
Mozhaysky began work on a project to develop a heavier-than-air aircraft from 1876. Mozhaysky re-enlisted in the navy in 1879 and was granted the rank of captain, 1st class. He became an instructor at the Sea Cadets Corps. He was promoted to rear admiral in July 1882, but resigned shortly thereafter due to domestic reasons. In 1884, Mozhaysky's monoplane made a failed attempt to fly. His design relied upon a ramp rather than engine power to generate sufficient speed for lift. The wing design of his craft lacked the curvature necessary to generate lift. While it is possible that Mozhaysky's wings slowed his monoplane's descent after launch from the ramp, the wings were unlikely ever to have provided sufficient lift for sustained flight unless used at angles of attack that would have been impractical, given the engines available to Mozhaysky. He also experimented with different angles of attack.
Mozhaysky died on April 1 1890; his tomb is at the Smolensk Cemetery in St Petersburg.
In 1909 a Russian newspaper claimed Mozhaysky's hop was the first powered flight. This claim was later repeated many times by the Soviet Union. In 1971-1981 TsAGI researched the topic and disproved the claim. Mozhaysky's original aircraft was found incapable of generating lift because of low engine capacity. It was also shown that with a more powerful engine, which Mozhaysky had planned shortly before his death, the aircraft might have been able to fly.
Nevertheless, Mozhaysky's aviation achievements, particularly with regard to flight controls and propulsion, were considerable given the limits of the technology available to him, and have only recently received serious attention.
Asteroid 2850 Mozhaiskij is named in his honour.
- Early flying machines
- Samuel Pierpont Langley, a U.S. scientist notable for his early powered aircraft flight attempts
- Clément Ader, a French inventor who designed a series of early steam-powered aircraft
- Mozhaysky's airplane
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