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Do single blades which pass the student demonstration of independent rotation but then function together as a multi bladed rotor during flight still qualify for Scoring Rule 5.a. time bonus, and would the blades be evaluated under Construction Rul...

No, the pre-inspection is not the only time in which a device must be within compliance of the rules. It must remain in compliance throughout testing. As such, if a Helicopter rotor design functions as a two-bladed rotor during flight, it will be judged as a two-bladed rotor. This means the 25 cm rotor diameter limit will apply and the 10% bonus will not.