"Stefan" wrote in message
...
Mike Rapoport wrote:

Which ones?

I had thought of some older gliders which have pretty low Vne. After I had
hit the send button, it dawned to me that they also have a pretty low
stall speed, though...

Stefan

I was thinking of sailplanes too. Hard to imagine a sailplane with a
critical Mach number equating to a IAS of 45kts or so even at FL500.

The key to this issue (IMHO) of Vne is that it may be based on any one of a
number of limiting factors, some of which are related to CAS and some to
TAS. The airplanes where Mach number is an issue (that I am familiar with)
have a Vmo and Mmo but don't use a Vne.

Mike
MU-2