PPRuNe Forums - View Single Post - Extendible Main Rotors

30th September 2007 | 04:31

#38 (permalink)

Dave_Jackson

Joined: Apr 2003

Posts: 1,635

Likes: 1

From: Vancouver, BC, Canada

Here is another related idea, which might be of interest.

It is by Anton Flettner in 1955.

Air vehicle with Rotary Wing ~ US Patent 2,881,989.

Dave

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