Lawrence Hargrave , a British-born Australian inventor , created a rigid-wing aircraft with flapping blades operated by a compressed-air motor , it flew 312 ft (95m ) in 1891 .A glider was develop by Jean Marie Le Bris in the 19th century . Samuel Langley made another important model flight attempt . The first heavier than air , gasoline powered engine that flew . It is called 'aerodrome , was powered by a 53 horsepower 5-cylinder radial engine and later crashed into the Potomac River on December 1903 --...











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