Mcrit
noun1
Aeronautics, Aerospace, Aviation, Business, Engineering, Natural sciences, Physical sciences The minimum Mach number at which the airflow over some part of an aircraft reaches the speed of sound.
- Many high performance aircraft are equipped with a Machmeter for monitoring Mcrit. The Machmeter is essentially an airspeed instrument that is calibrated in relation to Mach on the dial.2012, Aviation Maintenance Technician Handbook-Airframe Volume 2, FAA: