Everything works in harmony up until a point where it actually hinders. If you have a wider chord length, then it means more surface are, but then you'd need more power to spin the rotor.The freedom flight designs this year have three rotors, I assume to offset the reduction in length from 30 to 25 cm. Would a wider cord length help counter the shorter blade length? I am thinking two blades will be easier for my 7th graders to build plus help them build to weight. They have a really hard time getting under 3 grams . . . 3.3 to 3.2 is their best so far.
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