Detailed item info


AW Choppy Hobbycopter Homebuilt Ultralight Helicopter Plans


Adams-Wilson “choppy” Hobbycopter Plans
AW Hobby Copter

The AW Choppy is one of the most famous of all homebuilt helis. 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 Hobbycopter) was designed to use a motorcycle engine of about 50 hp for the powerplant. 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.

 

 
Our plans contain the original 38 pages of AW Choppy blueprints plus plans on CD with extras!



Also includes:

  • 2600 page book on Airplane Design
  • 99 page book. "Amateur-Built Aircraft and Ultralight Flight Testing Handbook" 
  • Various pictures of completed choppies

Specifications:


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)
  • Powerplant:  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
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