Xnec2c

Xnec2c

License: GPL-3.0


Description:

Xnec2c is a high-performance, multi-threaded electromagnetic simulator (NEC2-based) with a GTK3 GUI. It reads NEC2 input files, provides built-in NEC2 editing, and on-demand calculations for antenna radiation patterns, gains, impedance, and VSWR, with visualization of currents and fields.

openMotor

openMotor

License: GPL-3.0


Description:

openMotor is an open-source internal ballistics simulator for rocket motor experimenters. It estimates a motor’s chamber pressure and thrust from propellant properties, grain geometry, and nozzle specifications, using the Fast Marching Method to simulate grain regression. Features include metric/imperial units, DXF grain loading, propellant editors, and GUI-based design tooling.