THRUSTCURVE

This site debuted in 1998 as a repository for simulator files generated from actual motor firing data provided by the Tripoli Rocketry Association (TRA). At that time, the goal was to provide accurate simulator files converted directly from the data obtained at the motor test stand. I was able to get data for most TRA-certified motors, but the National Association of Rocketry (NAR) was not willing to make their data available... Subsequently, TRA stopped making data available and the site languished. There was still the original set of generated files, but it quickly became outdated as new motors were introduced and new motor manufacturers entered the market. As a stop-gap measure, I added a page to which people could contribute data from other sources (usually from the motor manufacturer)... I had thought repeatedly about changing the format of the site to being organized around the entire set of certified motors from all three organizations. (The Canadian Association of Rocketry..