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The Prediction of Helicopter Rotor Hover Performance using a ...

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Torque<br />

coefficient/<br />

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x Flight tests (Ref 9)<br />

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10 11 12 13 14 15<br />

Collective pitch<br />

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Fig. 9 Measured and calculated collective pitch for<br />

Wessex tail rotor<br />

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f X<br />

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17

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