Single Adams Wilson helicopter Choppy is the best known self-made helicopter. It is also known as Flying Triumph or Hobbycopter, this design served to create many successful self-made helicopters like Scorpion I and Skytwister. The drawings consist of 39 pages of A3 format, all the nodes are fully detailed and understandable for the independent construction of the helicopter.

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The kit includes:
Drawings of 39 sheets.
Drawings in English.
Product Size 7,4 Mb
Format JPG
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CHOPPY TECHNICAL CHARACTERISTICS.

Frame made of aluminum pipes. Two-blade propeller. Manual control of the automatic skew and the general pitch of the angle of installation of the blades. Managed tail rotor. If the engine fails, the landing is performed in the rotor self-rotation mode. To build a helicopter will require an engine capacity of 45 hp or more (from 450 cc to 1100 cc) from a motorcycle, boat engine, snowmobile, etc.

Width ................................... 1500 mm
Height ............................................... 1830 mm
Length ...................................... 4570 mm
Dry weight ............................... 156 kg
Total weight ............................ 273 kg
Diameter of the rotor ... 6560 mm
The maximum speed ... 140 km / h
Cruising speed ................. 105 km / h
The maximum ceiling is 2500 m.
Range of flight .................... 150 km

The helicopter can be built in a home workshop without the use of special equipment. Details and accessories are easy to find. For construction, you need minimal experience working with metal.
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