Description
Twister is a beginner friendly helicopter which complies with the provisional Science Olympiad Helicopter rules for the 2021 season. It builds to a rotor diameter of 20cm and is light enough to use a small amount of ballast for tuning while still easily staying right at the 2.5g minimum weight. Includes parts for 3 complete helicopters, two sizes of rubber, and a set of rotor pitch gages. In a large living room this model flies 50-60 seconds.
Requires foam safe CA glue for assembly!
Flight demo:
Updated jig and bearing arrangements:
Build instructions:
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