The warning sounds at Vmo. The damage occurs at 2 knots above Vmo. (Edit: Vmo is 250 KIAS up to 17,400 feet, then decreases linearly to 214 KIAS. Still, watch your power and your airspeed.)

All,The overspeed warning should not be sounding until 253kt or, above 17,400ft, Mach .525.I've always had the aircraft stress "feature" turned off. If it's true that it causes you to crash if you overspeed by a few knots, then I should be dead. In real life, we were 17 knots deep into the overspeed clacker, and stayed that way for the better part of 3 or 4 minutes one cold morning on our way to IAD.As was mentioned, the limits had little to do with the airframe's ability, and more to do with regulatory requirements than anything else.Regards,Nick

I'm still a total novice on the MD11. Yesterday I was flying KATL-KLAX. Several times during cruise, the airspeed would increase from approx M.82 to something like M.95. The overspeed sounds were quite evident. What is the proper procedure after getting into an overspeed situation. The aircraft started slowing down automatically, but is there anything I should be doing, either before or after this happens? FYI...I was using Active Sky Advanced, and was getting a very strong headwind most of the way (90kts), but occasionally the wind would die down. Is this a MSFS issue, or ASA, or FSUIPC?Thanks,Ron Priever

It is a much despised MSFS wx engine problem. Use a registered copy of FSUIPC and apply weather smoothing, rather than the smoothing feature of ASA. I've got mine set to slow wind shifts to 1deg/kt per 8 seconds. You can also smooth the temps and pressure, which I recommend and use one half the default rate.