Lift to Drag Ratio With Magnetic Levitation?

[metastable]

I am trying to estimate how much electromagnetic drag a coasting, magnetically levitated vehicle in a vacuum will experience.

I was looking at a paper describing the use of null flux coils for electrodynamic suspension.

I was confused by one of the charts in the paper... it appeared to show the lift to drag ratio increasing in a manner that was directly proportional with velocity. Since the lift should stay fairly constant I took it to mean the drag actually decreases with increasing velocity.

This seems counterintuitive when compared to other forms of drag such as wind drag which increases with increasing velocity.

Does anyone know if I understood the chart correctly? Does electromagnetic drag decrease with increasing velocity using null flux coils?

Thanks.

 

[arnis]

AFAIK for things to levitate speed is required - so higher speed is better.
Or it should be possible to do the trick with AC current so magnetic field itself changes.