V Speeds and their Definitions

Va – Design Maneuvering Speed.

Vc – Design Cruising Speed.

Vf – Design Flap Speed.

Vfe – Maximum Flap Extended Speed.

Vle – Maximum Landing Gear Extended Speed.

Vlo – Maximum Landing Gear Operating Speed.

Vlof – Lift-off Speed.

Vne – Never Exceed Speed

Vr – Rotation Speed

Vs – Stall Speed or Minimum Steady Flight Speed at which the Airplane is Controllable.

Vso – Stall Speed or Minimum Steady Flight Speed of Aircraft in Landing Configuration.

Vs1 – Stall Speed or Minimum Steady Flight Speed obtained in a Specified Configuration.

Vx – Speed for Best Angle of Climb.

Vy – Speed for Best Rate of Climb.
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