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Old 10th Mar 2014, 05:22
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ManUtd1999
 
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But there is no direct correllation between drag and mass (or vice versa) (with the exception where one introduces a wing into the equation, in which case one can say that induced drag (from the wing's lifting effort) is affected by mass.
Induced drag depends on lift, not mass. If you put two wings in a wind-tunnel at a fixed AoA and filled one with concrete the induced drag would be the same in each. For aircraft though more mass means more lift is required and induced drag increases.
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