What is the definition of VMC in aviation?

VMC is a crucial concept in aviation, particularly in multi-engine aircraft operations. It stands for "Minimum Control Speed." This is the minimum speed at which the aircraft can be controlled in the event of an engine failure. Achieving and maintaining VMC is vital for the safe handling of the aircraft when one engine is no longer operational.

Understanding VMC helps pilots ensure that they are flying at a speed that allows them to maintain control, particularly during critical phases of flight, such as takeoff and climb-out when engine power is vital for performance. The speed is typically defined in relation to the aircraft's configuration and load.

The other options do not represent the correct definition of VMC. Velocity Meaning Control is not an established term in aviation, while calibrated airspeed for straight flight doesn’t accurately capture the intended meaning of VMC. Lastly, maximum airspeed with an inoperative engine does not describe VMC, which focuses on the minimum speed needed for controlled flight rather than a maximum operating speed. Understanding the definition of VMC allows pilots to manage their aircraft more safely and effectively in various flying conditions.