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- Q286016 description "Danish aviator".
- Q286016 description "Danish aviator".
- Q286016 subject Q13574891.
- Q286016 subject Q6561549.
- Q286016 subject Q6562485.
- Q286016 subject Q7030691.
- Q286016 subject Q8281197.
- Q286016 subject Q8361873.
- Q286016 abstract "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 1903–1904 Jacob Ellehammer used his experience constructing motorcycles to build the world's first air-cooled radial engine, a three-cylinder engine which he used as the basis for a more powerful five-cylinder model in 1907. This was installed in his triplane and made a number of short free-flight hops as mentioned below.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. Ellehammer's later inventions included a successful triplane and helicopter. His helicopter was a coaxial machine. A famous photo shows it hovering in 1914, though there is no evidence that it was successful in achieving translational flight. Ellehammer later studied a disc-rotor configuration - a compound helicopter with coaxial blades that extended from the hub for hover, and retracted for high speed vertical flight. Although a wind tunnel model was constructed, there's no evidence that anything more was studied.".
- Q286016 birthDate "1871-06-14".
- Q286016 birthPlace Q2608258.
- Q286016 birthYear "1871".
- Q286016 deathDate "1946-05-20".
- Q286016 deathPlace Q1748.
- Q286016 deathYear "1946".
- Q286016 education Q157798.
- Q286016 nationality Q35.
- Q286016 thumbnail Jacob_ellehammer.jpg?width=300.
- Q286016 wikiPageExternalLink www.ellehammer.dk.
- Q286016 wikiPageWikiLink Q13574891.
- Q286016 wikiPageWikiLink Q157798.
- Q286016 wikiPageWikiLink Q1748.
- Q286016 wikiPageWikiLink Q18119757.
- Q286016 wikiPageWikiLink Q21893682.
- Q286016 wikiPageWikiLink Q253567.
- Q286016 wikiPageWikiLink Q2608258.
- Q286016 wikiPageWikiLink Q35.
- Q286016 wikiPageWikiLink Q465165.
- Q286016 wikiPageWikiLink Q5326805.
- Q286016 wikiPageWikiLink Q5364691.
- Q286016 wikiPageWikiLink Q5364693.
- Q286016 wikiPageWikiLink Q5364694.
- Q286016 wikiPageWikiLink Q6561549.
- Q286016 wikiPageWikiLink Q6562485.
- Q286016 wikiPageWikiLink Q7030691.
- Q286016 wikiPageWikiLink Q8281197.
- Q286016 wikiPageWikiLink Q8361873.
- Q286016 birthDate "1871-06-14".
- Q286016 birthPlace "Bakkebølle".
- Q286016 dateOfBirth "1871-06-14".
- Q286016 dateOfDeath "1946-05-20".
- Q286016 deathDate "1946-05-20".
- Q286016 deathPlace "Copenhagen".
- Q286016 education "Watchmaker, mechanic".
- Q286016 name "Ellehammer, Jacob Christian Hansen".
- Q286016 name "Jacob Christian Hansen Ellehammer".
- Q286016 nationality "Danish".
- Q286016 placeOfBirth "Bakkebølle".
- Q286016 placeOfDeath "Copenhagen".
- Q286016 shortDescription "Danish aviator".
- Q286016 type Person.
- Q286016 type Agent.
- Q286016 type Engineer.
- Q286016 type Person.
- Q286016 type Agent.
- Q286016 type NaturalPerson.
- Q286016 type Thing.
- Q286016 type Q215627.
- Q286016 type Q5.
- Q286016 type Q81096.
- Q286016 type Person.
- Q286016 comment "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.".
- Q286016 label "Jacob Ellehammer".
- Q286016 depiction Jacob_ellehammer.jpg.
- Q286016 givenName "Jacob Christian Hansen".
- Q286016 name "Ellehammer, Jacob Christian Hansen".
- Q286016 name "Jacob Christian Hansen Ellehammer".
- Q286016 surname "Ellehammer".