🧊 3D Bi-elliptic vs Hohmann Transfer: Spacecraft, Burn Plumes and the Delta-v Crossover

A Blender-modelled orbiter flies a Hohmann and a bi-elliptic transfer around Earth, the Sun or a unit-scale planet, with burn plumes, target stations on the right phase, numerical checks of the 11.94 and 15.58 crossover ratios and propellant cost per engine.