Ellehammer helicopter

The Ellehammer helicopter was an otherwise-unnamed experimental aircraft built in Denmark in 1912. Based on experiments with models Jacob Ellehammer constructed a full-size machine equipped with two contra-rotating discs each of which was fitted with six vanes around its circumference. The pitch of these vanes could be varied in operation by the pilot an early example of cyclic control.

built the Ellehammer helicopter in 1912. It consisted of a frame equipped with two counter-rotating discs, each of which was fitted with six vanes around its circumference.1
Ellehammer Helicopter of 1912. Tested sporadically until 1916, when a roll-over during a trial brought matters to a grinding halt.2
Sort photos of Ellehammer Helicopter by version Ellehammer Helicopter Sort photos of Elliots Olympia EoN by airline Sort photos of Elliots 3

Made by Jacob Ellehammer.

The Ellehammer helicopter was an otherwise-unnamed experimental aircraft built in Denmark in 1912.4
The Ellehammer helicopter was an otherwise-unnamed experimental aircraft built in Denmark in 1912. ... of aviation · Aircraft (manufacturers) · Aircraft engines (manufacturers) ...5
Designer
Jacob Ellehammer
Eng 1 Type
Custom-built radial engine
Eng 1 Kw
27
Number Built
1
Crew
One pilot
Rot Area Sqm
12
Rot Number
2
Manufacturer
Jacob Ellehammer
Rot Dia Ft
24
First Flight
28
Met Or Eng
met
Rot Area Sqft
130
Rot Dia In
7
Perfhide
Y
Eng 1 Hp
36
Eng 1 Number
1
Rot Dia M
7
Category
Danish experimental aircraft 1910-1919
Ellehammer aircraft
Helicopters

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