V Speeds Aviation

Minimum speed in the takeoff, following a failure of the critical engine at VEF, at which the pilot can continue the takeoff and achieve the required height above the takeoff surface within the takeoff distance.

Design cruising speed

Rotation speed

Never-exceed speed

Stalling speed or the minimum steady flight speed in the landing configuration

Speed for best rate of climb

Takeoff safety speed

Reference landing speed

Maximum structural cruising speed

Speed for best angle of climb

Maximum speed for stability characteristics

Reference stall speed

The stalling speed or the minimum steady flight speed obtained in a specific configuration

Minimum takeoff safety speed

Speed at which the critical engine is assumed to fail during takeoff

Design speed for maximum gust intensity

Maximum landing gear operating speed

Demonstrated flight diving speed

Maximum operating limit speed

Maximum landing gear extended speed

Reference stall speed in a specific configuration

Design diving speed

Final takeoff speed

Takeoff safety speed for a Category A rotorcraft

The maximum speed in the takeoff at which the pilot must take the first action to stop the airplane within the accelerate-stop distance.

Minimum control speed with the critical engine inoperative

Minimum unstick speed

Lift-off speed

Speed at which onset of natural or artificial stall warning occurs

Maximum speed in level flight with maximum continuous power

Maximum flap extended speed

Design flap speed

Design maneuvering speed