There was a Wind Tunnel column in Kit Planes magazine a few months ago
about Vne. The upshot was that you don't use indicated or calibrated
airspeed to determine Vne. You use TAS. For those of you who have to
dive to Vne, if you do your calculations ahead of time, and start high
enough, you could actually reach Vne well before you exceed the
structural cruising speed.
Vne is concerned with the actual speed of the air molecules hitting the
control surfaces, not the number of air molecules that hit the airplane
per second.
Hope this helps.
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