What is the value of Vmc in KIAS?

The value of Vmc, or minimum control speed, is crucial in multi-engine aircraft operations as it represents the minimum airspeed at which the airplane can maintain controlled flight with one engine inoperative. This minimum airspeed varies between aircraft models, influenced by various factors including aircraft design, weight, and configuration.

For many twin-engine aircraft, the typical value of Vmc is often found to be around 56 KIAS. This speed is integral for safe operation, as flying below this speed with one engine inoperative may lead to an uncontrollable yaw towards the inoperative engine. Understanding Vmc helps pilots ensure they operate above this threshold when an engine fails, thereby maintaining directional control and overall safety.

The other values provided in the choices (54, 58, and 60 KIAS) represent speeds that might not be applicable to the specific aircraft in question, which leads to an emphasis on the correct answer being the one that reflects the specified performance standards for a typical multi-engine aircraft. This highlights the importance of knowing the individual aircraft's operating handbook, which will provide the precise Vmc value necessary for safe operation.