Samme Motor indbygget i en Marine Flyvebaad., 1905–19, Gelatin silver prints from glass negatives, Image: 3 3/8 × 4 5/16 in. (8.5 × 11 cm), Photographs, Jacob Christian Hansen Ellehammer (Danish, 1871–1946), Vilhelm Ellehammer (Danish), Unaware of the Wright brothers' success, the Danish engineer Ellehammer worked in isolation to invent a means of flight, a feat he achieved on September 12, 1906. He soon shifted his attention to vertical flight craft, succeeding in 1912 in hopping along above ground in an experimental helicopter
Keywords:
Samme Motor indbygget, en Marine Flyvebaad, 1905–19, Gelatin silver prints, glass negatives, Image, 3 3/8, 4 5/16, 8.5, 11 cm, Photographs, Jacob Christian Hansen Ellehammer, Danish, 1871–1946, Vilhelm, Unaware, Wright brothers, success, Danish engineer, worked, isolation, invent, means, flight, feat, achieved, September 12, 1906, soon shifted, attention, vertical flight, craft, succeeding, 1912, hopping, ground, experimental helicopter
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