This property sets the initial amount of lift for a Wing object.
This and the SetFlapLift property set the "strength" of the wing. As the speed of the wing increases, the effect they have on the parent object does as well. You can have a negative value for SetWingLift, but not SetFlapLift.
SetWingLift always provides lift in same direction, e.g. if you have a flap that can rotate 360 degrees it does not matter what rotation your flap is set to, it will always provide lift up (or at different angle if you have positioned it with a SetRotation) relative to the model. In a plane the lift is always pulling you towards the top of the model, not the world (e.g., when the model is upside down, the lift pulls you towards the ground).
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