What is the operating limit for the minimum control speed (Vmcg) during takeoff?

The minimum control speed on the ground, often referred to as Vmcg, is crucial for ensuring safe aircraft operation during takeoff. It represents the minimum speed at which the aircraft can maintain directional control with one engine inoperable.

In this case, the correct answer, 85 knots, reflects a standard consideration for many aircraft operations, balancing performance and safety parameters during the critical phases of takeoff. The specification of this speed is designed based on factors such as engine-out scenarios and aerodynamic performance, ensuring that pilots have sufficient control authority to maintain directional stability in the event of engine failure while still on the ground.

Establishing a standard Vmcg allows pilots to be adequately trained and prepared for emergency situations, contributing to the overall safety and reliability of aircraft operations. Such parameters are vital to aviation standards, as they help prevent loss of control during a critical phase of flight. The other speeds listed may not align with the specific operational limits set by aircraft manufacturers or aviation authorities for the aircraft in question.