The subject of improvements to rotorcraft invariably brings up phrases such as;
Composite construction
More efficient engine
Light weight avionics
Piezoelectric actuators
The above sounds like Igor when he said that he had to wait for OTHERS to develop a better power/weight engine.
Meanwhile Focke and Flettner were building and flying their helicopters.
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This thread is discussing the regurgitation of the previous XH-59A ABC. IMHO, any serious desire to improve the ABC concept will require research and development that is rotorcraft specific, such as;
Active blade twist.
Reverse velocity blades.
Higher cyclic rate flight controls
The essence of rotorcraft is the 'Rotor'
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China has ten times more engineering students than the US. If the 'West' wants to decrease the rising unemployment it might consider spending its tax dollars on sending hundreds of thousands back to school.
Or, do we just wait until Rotorland moves to the far east?
Dave