Has anyone found or made an Excel template to display a theoretical power (Watts) curve. Using the theoretical formula: Watts=Diameter squared * MPH cubed * Efficiency (where Efficiency is .0012 for nonmetric and diameter is in feet). The MPH range could be limited on the X axis from 0-50 MPH to make the curve more readable. The Y axis would be Power in watts. Please help me format this in Excel, I would like to make this widely available, the more polished the better.