Quote:
Originally Posted by Crumpp
The only way to judge the affects of weight is to hold a constant, adjust weight, and measure the results.
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In the polar analysis, the weight is adjusted and the answer to the question in hand is calculated directly adjusting the Cl accordingly to keep thrust and drag balance.
Quote:
Originally Posted by Crumpp
That is the basic scientific method and is generally accepted for aerodynamics and applied physics.
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The polar analysis is the very basic method of performance analysis, it can be found from any good aerodynamics book. The formula you used is based on the polar analysis but limited to one given Cl (or AoA).
Quote:
Originally Posted by Crumpp
Otherwise we miss the forest for the trees.
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Using the same terms; with the polar analysis we can see the forest and the trees, with your formula we can see only the trees.