Roteron XM-1
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Dan, e-mail, 29.12.2014 20:01

If you Google "Douheret Helicopter" and click on "image" you can see this counter torque design approach goes back to 1918. In 1957 I had a toy (patent 2949693)that operated on this principal.


Dan, e-mail, 29.12.2014 19:30

I think Bruno Nagler's model 120 had a similar layout. His helicopter patents 2948491 and 3206145 used this design approach.


Mohsen, e-mail, 21.08.2012 09:58

your site is very good


³ÂêÍ, e-mail, 25.05.2010 13:33

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Nehaa Varshney, e-mail, 07.09.2008 18:34

Its an amazing rotorcraft....with a light body nd weight...
nd onething is very interesting dat it has 5 cylinder engine between the rotors....its a kind of advantage of dat time....nd an instigation for us.....


with regards
Nehaa Varshney......


majid mehranpoor, e-mail, 18.05.2008 10:46

Hi dear
I like aviation information. and i like to that make a smal copper same as this (Roteron XM-1). I want you guide me on this case by send this information.
many thanks
majd




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