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Good information. However, ABC (a fan of) is (active propulsed wing) and still suffers from retreat stall/slow etc yes? So great, add the ABC but fly mostly on a (passive, non propulsed) wing at high speed.Stacked rotors add rng killing drag, weight, complexity, maintainence, additional maintainence training etc.Why would Karem bother if no advantage...
Good information. However, ABC (a fan of) is (active propulsed wing) and still suffers from retreat stall/slow etc yes? So great, add the ABC but fly mostly on a (passive, non propulsed) wing at high speed.
Stacked rotors add rng killing drag, weight, complexity, maintainence, additional maintainence training etc.
Why would Karem bother if no advantage...
