# Changes

,  06:56, 16 April 2010
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An important relationship to note is that between force and $\theta$. The combined force balance indicates a relationship between force and $sin \theta * cos \theta * cos \theta$.

An important relationship to note is that between force and $\theta$. The combined force balance indicates a relationship between force and $sin \theta * cos \theta * cos \theta$.
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As a result, the optimal tilt of the blades would provide an angle to the airflow such that $sin \theta * cos \theta * cos \theta$ is a maximum. This value has been presented in the graph below to show how the value changes as $\theta$ is adjusted.

= '''-- Regional Considerations --'''  =

= '''-- Regional Considerations --'''  =
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