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  1. W

    Another Chinese Coaxial helicopter

    Anybody has more info about this Chinese helicopter? seems very interesting, wonder what gear box and rotor head is this? Regards
  2. W

    pusher gyro --- tail dragger

    sorry for the stupid question here, but besides Daniel Kocyba designs I haven´t seen any pusher tail dragger? all gyros appears to be. tricycle = pusher tricycle = tractor. tail dragger = tractor. as I understand the pusher configuration fly cleaner than the tractor and are more compact; all...