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

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Calculate initial<br />

momentum downwash<br />

Input blade geometry<br />

rotor thrust<br />

atmospheric conditions<br />

aer<strong>of</strong>oil data<br />

Calculate mid points<br />

<strong>of</strong> blade segments<br />

and related quantities<br />

Use equation (5)<br />

to calculate downwash<br />

Integrate thrust<br />

and torque distributions<br />

Alter the<br />

collective pitch<br />

Fig.3 Flow diagram <strong>of</strong> the performance calculation

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