Jacob Ellehammer

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Personal information
Jacob Christian Hansen Ellehammer

Name	Jacob Christian Hansen Ellehammer
Nationality	Danish
Birth date	June 14, 1871
Birth place	Bakkebølle
Date of death	May 20, 1946
Place of death	Copenhagen
Education	Watchmaker, mechanic
Work
Engineering Discipline	Aviation
Significant design	Ellehammer semi-biplane

Jacob Christian Hansen Ellehammer (June 14, 1871 – May 20, 1946) was a Danish watchmaker and inventor born in Bakkebølle, Denmark. He is remembered chiefly for his contributions to powered flight.

Following the end of his apprenticeship as a watchmaker he moved to Copenhagen where he worked as an electronics mechanic before establishing his own company in 1898. In the beginning he produced cigarette machines, beverage machines and other electronic machinery. In 1904 he produced his first motorcycle, the Elleham motorcycle.

In 1905, he constructed a monoplane, and in the following year a "semi-biplane". In this latter machine, he made a tethered flight on 12 September 1906, becoming the second European to make a powered flight (after Traian Vuia).

Ellehammer's later inventions included a successful triplane and helicopter.

[edit] See also

First flying machine

[edit] References

The Early Years (Aviation Century), 2003, Ron Dick, Amanda Wright Lane, Dan Patterson, Boston Mills Press, ISBN 1550464078
Wings: A History of Aviation from Kites to the Space Age, 2004, Tom D. Crouch, W. W. Norton & Company, ISBN 0393326209
100 Years of Flight: A Chronology of Aerospace History, 1903-2003 (Library of Flight Series), 2003, Frank H. Winter, F. Robert Van Der Linden, AIAA, ISBN 1563475626