Projects of the Flettner Aircraft Corporation/Key Gardens NY, USA

[Jemiba]

Anton Flettner, well known for his helicopters in Germany emigrated to the USA in 1947 and
founded the Flettner Aircraft Corporation. There he designed a heavy lift helicopter with
gas powered intermeshing rotors. Forward propulsion was given by two propellers, the rotors
should turn freely during forward flight and only be powered for take-off and landing, or low
speed flight. Rotor diameter was 23.5 m, length25.8m and payload about 3 tons. The compound
helicopter was desiganted Model 201.
(Information and drawing from vertiflite Summer 2003)

 

[Maveric]

An absolutly great find, fantastic :-* :-* :-*

 

[hesham]

Amazing project my dear Jemiba,


you made my day.

 

[Stargazer]

Such a sweet serendipity!!! The whole US connection with Flettner is totally new to me. Thanks a lot, Jemiba!

 

[Jemiba]

Another project shown in that article, but just as a sketch, was the model 200, proposed
to the USN. It was a one-man helicopter, with a two-bladed rotor powered by two pulse jets,
mounted on beams perpendicular to the rotor blades.

 

[hesham]

Wow,fantastic my dear Jemiba.

 

[richard]

From a "Science et Vie" of the mid-fifties :

 

[hesham]

Wow,what a beauty project my dear Richard,many thanks.

 

[hesham]

Hi,


anther Flettner patent in USA;


http://www.google.com/patents/US2881989

 

[hesham]

Hi,

http://archive.aviationweek.com/image/spread/19521222/8/2
http://archive.aviationweek.com/image/spread/19521222/9/2

 

[hesham]

From Vertiflite 1955-2

here is anther Project for convertiplane,could accommodated 40
passenger.