0849

Item 0849

OTHER: Helicopter - Inside - Intermeshing - Absolutely Rigid Rotor - VTOL

Drawing:

Notes:

Ref:

VTOL airplane with only one tiltable prop-rotor ~ United States Patent ~ 6,382,556 ~ May 7, 2002, It proposes a variable twist proprotor,

High performance VTOL convertiplanes ~ United States Patent ~ 6,974,105 ~ December 19, 2005

I think that Sikorsky has a similar patent

Note that the rotors will not provide enough velocity for forward flight. I.e. rotor for lift and propeller for forward flight. Perhaps a two speed transmission might help.

Last Revised: October 2, 2008