Hopefully this proves helpful to other teams wanting to better understand the flight dynamics of a Frisbee and making shots in the three goals based on changing initial speed, shooter angle, and shooter height.

The calculator is based on that paper, which is in turn based on Morrison’s paper.

Morrison’s paper is wrong, I believe. His derivation for the force Fx is incorrect. He goes off the rails at Equation 12 where he says Fx is equal to Fd… Fx is equal to Fd only for the special case when the velocity V is horizontal.

For the general case when V is not horizontal, Fx is the sum of components from Fd and Fl, as follows:

My only gripe is that your Shooter and Goal Height inputs are in feet, while the output distance and height is in meters. The added conversions makes the tool less than useful as a “quick reference” imo.