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AW CHOPPY HOBBYCOPTER

CHOPPY the best self-made helicopter.

       Design drawings.
 

 

  • Adams Wilson's Choppy single helicopter the best of known self-made helicopters.

     It also is known as Flying Triumph or , this design has served for creation of many successful self-made helicopters as Scorpion I and .

     Drawings consist of 40 pages of format     ?-3, all units are completely detailed and clear for independent construction of the helicopter.
  • The AW Choppy is one of the most famous of all homebuilt .

     Designed in the late 50's, The AW Choppy was designed to use commonly found materials that were readily available to consumers.

    The Choppy (also known as the ) was designed to use a motorcycle engine of about 50 hp for the .
     Various engines have been used.
    Some people have  even used a snowmobile motor! More recent choppers commonly use an ultralight 2 cycle Rotax engine around 52 horsepower.    The AW Choppy is a single seat, open cockpit, frame fabrication helicopter.

General characteristics

  • Crew: one pilot
  • Length: 15 ft. (4.57 m)
  • Main rotor diameter: 21 ft. 6 in. (6.55 m)
  • Height: 6 ft. (1.83 m)
  • Main rotor area: 363 ft (34 m)
  • Empty: 300 lb (136 kg) can be built as an ultralight.
  • Loaded: 600 lb (183 kg)
  • Maximum takeoff: lb ( kg)
  • :  various - typically a 4-stroke triumph motorcycle engine
  • Performance
  • Maximum speed: 85 mph (136 km/h)
  • Range: ?
  • Service ceiling: 8,500 ft. (2,590 m)
  • Rate of climb: 950 ft/min (290 m/min)
  • Main rotor loading: 1.7 lb/ft (5.3 kg/m)
  • Power/mass: varies

I only the seller also do not bear the responsibility for possible mistakes of the designer.