"Greg Esres" wrote in message
...
Since the forces on these control surfaces will not vary with weight,
you certainly can't scale it up.

Huh? You have to scale Va with weight. Even within legal configurations, a
specific Va is valid only at a specific weight, with lower weights resulting
in lower Va and higher weights resulting in higher Va.

Just because you went outside the design/certification envelope, that
doesn't change the nature of Va.

Pete