The angle of attack which gives the best L/D ratio
- decreases when density decreases.
- in unaffected by density changes.
- increases when density decreases.
Explanation from PART66Online
The angle of attack giving the best lift-to-drag ratio is a geometric property of the aerofoil, fixed by its shape. Changing air density alters the lift and drag forces and the speed required, but the optimum angle at which L/D peaks stays the same regardless of altitude or density.
B
bennguli asked · 12 Apr 2017
how?
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