An advanced 3DOF trajectory model that requires Ballistic Coefficient. Supports the G1, G2, G5, G6, G7, G8, GS, GL, GI, GB and RA4 models. The source code includes an ODE engine based on a Bulirsch-Stoer variable step length numerical integration method for rational functions. The model needs to be complemented with more retardation forces, but at normal shooting distances it might well be considered complete.
