Following along this interesting discussion. Note that the speed Vne is only
defined for piston-engined airplanes. For the rest, the maximum operating
speed would be Vmo in the speed regime and Mmo in the Mach regime. But
regardless of the speed being referenced, be it Vne or Vmo, this is not a
structural limit speed. Flying above Vne (or Vmo) for 6, of for that matter,
600 seconds, should not result in a structural failure (crash) due to
overspeed. The structure must be good out to to the design dive speed, Vd,
which is above Vne or Vmo. Regarding the overstress crash, you are applying
the safety factors to the g-limit parameters and not just using the g-limit
parameters directly, right?
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