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#032 | What Speeds Should Pilots Memorize? | V Speeds | FAR 1.2
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- VA means design maneuvering speed.
- VB means design speed for maximum gust intensity.
- VC means design cruising speed.
- VD means design diving speed.
- VDP/MDF means demonstrated flight diving speed.
- VEF means the speed at which the critical engine is assumed is assumed to fail during takeoff.
- VF means design flap speed.
- VFC/MFC means maximum speed for stability characteristics.
- VFE means maximum flap extended speed.
- VFTO means final takeoff speed.
- VH means maximum speed in level flight with maximum continuous power.
- VLE means maximum landing gear extended speed.
- VLO means maximum landing gear operating speed.
- VLOF means lift-off speed.
- VMC means minimum control speed with the critical engine inoperative.
- VMO/MMO means maximum operating limit speed.
- VMU means minimum unstick speed.
- VNE means never-exceed speed.
- VNO means maximum structural cruising speed.
- VR means rotation speed.
- VREF means reference landing speed.
- VS means the stalling speed or the minimum steady flight speed at which the airplane is controllable.
- VS0 means the stalling speed or the minimum steady flight speed in the landing configuration.
- VS1 means the stalling speed or the minimum steady flight speed in the landing configuration.
- VSR means reference stall speed.
- VSRO means reference stall speed in the landing configuration.
- VSR1 means reference stall speed in a specific configuration.
- VSW means speed at which onset of natural or stall warning occurs.
- VTOSS means takeoff safety speed for Category A rotorcraft.
- VX means speed for best angle of climb.
- VY means speed for best rate of climb.
- V1 means the maximum speed in the takeoff at which the pilot must take the first action (e.g., apply breaks, reduce thrust, deploy speed breaks) to stop the airplane within the accelerate-stop distance. V1 also means the 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.
- V2 means takeoff safety speed.
- V2min means minimum takeoff safety speed.