compressibility correction

compressibility correction

[kəm‚pres·ə′bil·əd·ē kə′rek·shən]

(fluid mechanics)

The correction of the calibrated airspeed caused by compressibility error.

compressibility correction

A correction applied to rectified airspeed to get equivalent airspeed. This correction is always negative but is generally negligible below 200 to 240 knots.