internal ballistics simulator for rocket motor experimenters

 openMotor is an open-source internal ballistics simulator for rocket motor
 experimenters. The software produces estimates of a rocket motor's chamber
 pressure and thrust based on input such as propellant properties and grain
 geometry. It uses the Fast Marching Method to determine how a propellant
 grain regresses, which allows the use of arbitrary core geometries.
 .
 Current Features:
   * Metric and imperial units
   * Support for common grain geometries such as BATES, Finocyl, Star and more
   * Loading custom grain geometry from DXF files
   * A propellant editor that allows the user to enter the properties of as
     many propellants as they wish
   * The grain editor displays how a grain will regress to cut down on the
     guesswork involved in tweaking geometry
   * ENG file exporting
   * Burnsim importing and exporting
   * A UI that supports saving and loading designs along with undo and redo.
 .
 Planned Features:
   * Erosivity simulation
   * Detailed output of every calculated parameter at any time and position
     along the motor