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Learn all about the operating principles of a real helicopter as you construct this realistic model from the detailed construction plans. You'll find out that not only do the rotors revolve, but you can even adjust the pitch of the blades by a contrl lever-just like a pilot does to hover or move forward.
With this Expert Builder Set, you can also construct many other models including a biplane, sports plane, radar screen, mobile ladder and windmill.
The helicopter has spinning propellers and two seats. Common to early TECHNIC sets, the helicopter is multi-coloured.