10 Revolutionary Breakthroughs in Helicopter Rotor Systems - #7 Will Leave Competitors in Despair

5. Variable Speed Rotor System

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Variable speed rotor systems challenged the long-held belief that helicopters must operate at a constant rotor RPM. This innovation allows the main rotor to operate efficiently across a broader range of speeds, reducing power demand during cruise flight by up to 25%. The system automatically adjusts rotor speed based on flight conditions, optimizing performance while lowering fuel consumption and noise levels. This breakthrough has opened new possibilities for long-range operations and hybrid-electric propulsion systems.