We've added a formulas page on the main site at http://miniairboatassoc.com/formulas.php
I've added a prop tip speed calculator so far. If you have any formulas that will help other in their projects please post them up in this thread so we can have them all in one spot. If possible, I will write a script for the formula and post a calculator for each of the other formulas on that page as we get them.
