Mike the Strike wrote:
... There are a few
very minor issues that only an engineer or aerodynamisist would
catch. One is the use of the Greek letter Alpha to label the AoA of
the fin in a skid - Beta is correct....
Mike

Hmmm...beta is yaw angle, and alpha is AoA.
In referring to side forces generated by a vertical fin,
beta is not quite the controlling factor, is it, when the rudder effect
is included?

Brian W