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A set of three identical propellers for the indoor and outdoor flight competitions. This propeller has won Great American Aero Derby as well as TSA and Science Olympiad competitions. It comes fully assembled with a smaller diameter motor shaft that easily will center the motor every time. The propeller is made from one piece injection molded plastic.
Propeller diameter: 17 cm or 6.7"
Propeller assembly weight: 3.6 grs (can be reduced by shaving the propeller blades)
This lightweight propeller is known to fly very well on small diameter rubber string which especially favors the TSA competitors.