EFFICIENCYAND SCALINGINDC ELECTROMAGNETIC LAUNCHERS

results are performed intermsofthelauncher's inductance gradient, physical dimensions (i.e., armatureEfficiency andscaling relationships forDC (i.e., non- stator diameter andlength), resistive losses, local energy induction) electromagnetic launchers (EML's)are storage (i.e., inductive), andarmature velocity. A survey presented anddiscussed. Efficiency and scalingofrecent electromagnetic launcher results isperformed relationships forthesetypesoflaunchers areeasilyandcompared tothetheoretical predictions. generalized since their principle ofoperation isthesame, namely theproduction ofanelectromagnetic force viaa spatial change ininductance. Electromagnetic force,