What is the air minimum control speed (Vmca) with propeller feathered and flaps at approach?

The air minimum control speed with propeller feathered and flaps at approach determines the minimum speed at which the aircraft can maintain controlled flight with one engine inoperative. For the King Air 350, the Vmca is a crucial parameter during multi-engine operations, particularly on takeoff and during approach when flaps are extended.

At this configuration, specifically when the propeller is feathered (which minimizes drag from the inoperative engine) and the flaps are set for approach, the Vmca is 93 KIAS. This speed ensures the pilot can maintain directional control during a single-engine operation, providing a safety margin necessary for maneuvering in the event of an engine failure. Understanding this speed is vital for pilots during approach phases, as it contributes to safe flight operations and effective decision-making in critical situations.

The other choices represent speeds that do not align with the established operational limits for the King Air 350, underscoring the importance of accurate and specific knowledge regarding aircraft performance data.