12 cyl. stjerneformet Motor 160HK. Forsog ikke aflluttede April 1919., Jacob Christian Hansen Ellehammer, 1905–19
12 cyl. stjerneformet Motor 160HK. Forsog ikke aflluttede April 1919., 1905–19, Gelatin silver prints from glass negatives, Image: 4 3/16 × 3 1/8 in. ( × 8 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
Size: 5530px × 3851px
Photo credit: © Artokoloro / Alamy / Afripics
License: Licensed
Model Released: No
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