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MAC Stands for mean aerodynamics chord. Its the average chord length of a tapered wing . its specifically used in tapered wing for aerodynamic performance and stability equation . In a straight wing the mean aerodynamic chord and actual chord remains the same whereas in the tapered wing it value is not identical
The ratio of the speed of an Object to the speed of sound in the surrounding medium is known as Mach. Which is the Standard Unit of measuring airplane speed....
MAC means mean aerodynamic chord
MAC implies MEAN AERODYNAMIC CHORD Which can be defined as the average length of the chord on the tapered swept back wings is know as Mean aerodynamic chord