net.sf.openrocket.gui.main.SwingExceptionHandler$InternalException: An exception occurred during the simulation at net.sf.openrocket.gui.main.SwingExceptionHandler ...

Abstract: The category of high-powered tiny rockets includes model rockets. A model rocket typically has a single stage or two stages. For instructional reasons, especially for rocket lovers, these ...

If possible, please send us the .ork file that caused the bug. Include your email address (optional; it helps if we can contact you in case we need additional ...