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    VTOLs and Helicopters —James Davis
   One of the latest additions to my website was a pair of VTOLs, the "Thunder" and the "Donar." If you take a look at the Donar, you'll see that I included an attempt at a contra-rotating lift system. Has anyone managed a good looking and FUNCTIONAL (...) (25 years ago, 23-May-00, to lugnet.build)
   
        Re: VTOLs and Helicopters —Alan Gerber
   To me, it looks a lot more like an autogyro that a VTOL (an autogyro is a top-rotored aircraft with a exterior engines that don't power the rotors and no (...) (25 years ago, 23-May-00, to lugnet.build)
   
        Re: VTOLs and Helicopters —James Davis
   (...) counter the torque of the main rotor. This design is (I believe) more popular among Russian designs than any others. Popular helicopter rotor systems include a primary rotor with a tail rotor, two primary rotors on opposite sides of the VTOL (...) (25 years ago, 24-May-00, to lugnet.build)
   
        Re: VTOLs and Helicopters —Selçuk Göre
    (...) Almost all helicopter from Kamov (former USSR) are of that type. Selçuk (...) (25 years ago, 8-Apr-00, to lugnet.build)
 

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