What is the Vmca for the T-54 when the flaps are in approach position?

The Vmca, or minimum control speed in the air, is a critical parameter for flight operations, particularly during takeoff and landing phases. For the T-54 with the flaps in the approach position, the Vmca is established as 87 KIAS. This speed is essential because it represents the minimum airspeed at which the aircraft can be controlled with maximum power on one engine and the other engine inoperative, allowing for a balanced and safe operation of the aircraft.

Understanding this speed helps pilots maintain control during critical phases of flight, particularly when making turns or adjustments. Keeping an awareness of Vmca allows for better situational awareness and operational safety, emphasizing its importance in training and practical flying scenarios.

The other values listed in the choices do not reflect the established minimum control speed for the T-54 in the specified configuration, making 87 KIAS the correct and most accurate answer.