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1870

Penaud

Shortly before his death at the age of thirty Penaud revived a sort of "Chinese top", with one original feature. Motive power was provided by pieces of twisted indiarubber - a method still in use today by aero modellers.

This aircraft had two contra-rotating rotors.

P.Lambermont "Helicopters and Autogyros of the World", 1958

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Another notable French experimenter of this time was Alphonse Penaud. Around 1870 he built a number of high-flying model helicopters, all fashioned after the manner of the Chinese top. Powered with twisted rubber bands, several of his models climbed to heights of more than 50 feet. Penaud's experimentation and model-building activity was not limited to helicopters alone: he designed and constructed tiny rubber-powered airplanes and ornithopters (wingflappers) that also flew exceedingly well.

G.Apostolo "The Illustrated Encyclopedia of Helicopters", 1984

Comments 
lucy, e-mail, 15.10.2011

Would love to see the plans to use it for event we are having at our schools

shoes, e-mail, 13.06.2011

i made a replica of his helicopter

jason, e-mail, 06.01.2011

how do you build it?and what are the materials, i need it by next monday because this is my ipw project

jeremy, e-mail, 29.11.2010

HOW DO YOU BUILD THIS??!!

Julia Usher, e-mail, 20.09.2010

i am also interested in building one of these toys, for a stage production about Wittgenstein - who was also interested in early flight experiments, using models - which he realised were like Thought Models in logic.....

eugenia, e-mail, 19.04.2010

how do you build this helicopter what are the materials

raul, 19.03.2010

how do you build this

chris hutton, e-mail, 17.01.2010

I also made the above model. how long should they stay up?

jack, e-mail, 07.04.2008

i made a replica of his helicopter

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