The maximum velocities allowed are Va in turbulent air and Vne in smooth air conditions.
Your aircrafts Vne is an indicator of speed, in smooth air conditions, where permanent distortion or control flutter may occur. As stated, you can fly at Vne in safety, but you cannot expect to make sudden maneuvers at this speed or fly in turbulence without possible damage. Larry A Capps Naperville, IL "Those are my principles. If you don't like them, I have others." - Groucho Marx -----Original Message----- I would add that Vne is normally expressed as that speed, the wing can generate more lift than the spars can hold.