JC, In the early days of phonographs, drive was by a “clock” spring. You had to wind them up like a mechanical toy. Speed of the turntable was controlled by a friction brake activated by centrifugal weights. That device is called a governor. Lawn mowers have governors, steam locomotives have governors.
But that’s not important.
With very high incidence of rotorblades, so much of the retreating blade is stalled that any attempt at speed increase spreads stall near retreating tips, making rotor disc angle of attack very sensitive to forward speed. Acts like a governor on a rotary lawn mower.
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A metaphor doesn’t translate well; I’ll try to avoid them in the future.
But that’s not important.
With very high incidence of rotorblades, so much of the retreating blade is stalled that any attempt at speed increase spreads stall near retreating tips, making rotor disc angle of attack very sensitive to forward speed. Acts like a governor on a rotary lawn mower.
******
A metaphor doesn’t translate well; I’ll try to avoid them in the future.
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