Douglas Eagleson wrote:
a square plug can go supersonic nicely


Not really relevant. The A-10's airframe has a never-exceed speed (Vne)
of around 450 knots. Push it much faster than that and there's a good
chance of significant airframe damage. Even approaching Mach 1 will
certainly cause pieces to come off the plane. It won't reach Mach 1.5
except as a cloud of debris.

--
Tom Schoene lid
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