What does Vfto stand for?

Vfto stands for "Final Takeoff Speed." This term is used in aviation to refer to the minimum speed at which an aircraft is considered safe for takeoff during the final phases of the takeoff procedure, just before liftoff. It indicates the speed at which the aircraft can safely climb and achieve a positive rate of ascent.

Understanding the importance of Vfto is crucial for pilots, as it ensures that the aircraft has reached a speed that allows for safe maneuvering after takeoff, especially in scenarios that require immediate climb performance or handling during adverse conditions. This speed takes into account various factors such as aircraft weight, environmental conditions, and configuration, which are vital for ensuring flight safety and performance.

Other terms mentioned in the choices relate to different aspects of aircraft operations. For instance, final landing speed pertains to the speed at which an aircraft approaches and lands, not takeoff. Flap retraction speed signifies when an aircraft can safely retract its flaps without risking a stall, and minimum control speed with critical engine inoperative is about maintaining control of the aircraft in the event of an engine failure. Each of these terms serves specific roles in aviation, but they do not define Vfto, which is specifically targeted towards ensuring safe and effective