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  2. GEN H-4 - Wikipedia

    en.wikipedia.org/wiki/GEN_H-4

    Its two coaxial, contra-rotating two-bladed rotors have diameters of 4 m (13.1 ft). The main rotors are both of fixed pitch design, with no articulation in any axis. Steering is accomplished by pivoting the rotor head on a gimbal using a control handle, in a similar manner to a weight shift hang glider. Climb and descent is controlled by ...

  3. List of ultralight helicopters - Wikipedia

    en.wikipedia.org/wiki/List_of_ultralight_helicopters

    Agricultural coaxial heli China [21] Red Coaxial Helicopter China Coaxial Single Seater [22] White Coaxial Chopper China Coaxial Single Seater [23] Homebuilt Coaxial Heli China Coaxial Single Seater [24] Yellow tail coaxial heli China [25] Famà Kiss 209: Italy Sk-1 Twinpower Italy [26] G-250 Eagle: Italy Engine Turbine LCA LH 212 Delta: Italy ...

  4. Rotorfly R-30 - Wikipedia

    en.wikipedia.org/wiki/Rotorfly_R-30

    The Rotorfly R-30 helicopter is a coaxial helicopter with two two-blade fiberglass rotors. The control rods of the upper main rotor are located inside the shaft which reduces turbulence, It has been described as a hingeless teetering blade mount. [2] The aircraft claimed to be very quiet in general. [5]

  5. Eagle's Perch - Wikipedia

    en.wikipedia.org/wiki/Eagle's_Perch

    The Eagle's Perch was an American helicopter that was designed by the Nolan brothers and produced by Eagle's Perch Inc. of Carrollton, Virginia. Now out of production, when it was available the aircraft was supplied as a kit for amateur construction. [1]

  6. Coaxial-rotor aircraft - Wikipedia

    en.wikipedia.org/wiki/Coaxial-rotor_aircraft

    A coaxial-rotor aircraft is an aircraft whose rotors are mounted one above the other on concentric shafts, with the same axis of rotation, but turning in opposite directions (contra-rotating). This rotor configuration is a feature of helicopters produced by the Russian Kamov helicopter design bureau.

  7. Arrow Coax Livella Uno - Wikipedia

    en.wikipedia.org/wiki/Arrow_Coax_Livella_Uno

    The Livella Uno was designed to comply with the US FAR 103 Ultralight Vehicles and the European 120 kg class ultralight aircraft rules. It features a dual coaxial main rotors, with an inverted V-tail, a single open-air pilot's seat without a windshield, tricycle landing gear and a 40 hp (30 kW) Wankel Aixro XH40 engine.