Paul - I have a BASIC program that predicts performance pretty
 well and it computes induced drag, uses prop diameter, airfoil tables
 wing span,shape etc. The 2G is easily modeled by increasing
 gross weight by twice. Weight is a minor player in top speed,
 and the turns in the F1 class course are a larger factor than on
 the unlimited course. It took F1 guys a long time to get the
 message on aspect ratio. Acceleration is also a factor in F1, but not so
 much in unlimited with the paced start.
 If you like I could run some straw man cases for you. Vance

Jarrett Johnson wrote:

Vance, I'm curious to know a bit more about your program. Did you write it
or purchase it from someone else? I'm looking for stuff like this and had to
ask.

Jarrett Johnson

 
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