Which V-speed represents maximum flap extended speed?

The V-speed that represents maximum flap extended speed is known as Vfe. This speed indicates the highest airspeed at which an aircraft can safely fly with its flaps extended. When flying at or below this speed, the aircraft maintains controllability and performance under the additional aerodynamic drag that flaps introduce.

When flaps are extended, they change the lift and drag characteristics of the aircraft, which makes it crucial for pilots to be aware of Vfe to prevent exceeding the speed limits and risking structural damage or loss of control. Understanding Vfe is particularly important during approach and landing phases of flight, where flaps are typically utilized.

Other V-speeds, like Vno (maximum structural cruising speed), Vref (reference landing speed), and Vs (stalling speed in a specified configuration), serve different purposes and are related to different configurations or operational limits, but they do not specifically denote the speed at which flaps can be safely extended without compromising safety or performance.