Aircraft Zero-lift Drag Coefficient Corrected for Mach Effects with Gears and Flaps Retracted

The aircraft drag polar is expressed as:

..\Images\IMG00025_shg.gif

For parabolic drag polars:

..\Images\INFO0255_wmf.gif

where:

..\Images\INFO0256_wmf.gif

is the wing aspect ratio.

..\Images\INFO0257_wmf.gif

is the Oswald's efficiency factor.