1 meter per second burning rate ("ATFE’s own burn rate threshold for deflagration is 1000 millimeters (or one meter) per second." Tripoli Rocketry Ass’n, 437 F.3d at 81–82) as the threshold for a material on the BATFE list of explosive materials. Vendors The largest vendor of model rocket motors in the world is Estes Industries. The largest vendors of high-power rocket motors in the world are Cesaroni Technology Inc. and RCS Rocket Motor Components, Inc. The very first model rocket motor certified was by Model Missiles Inc. (Orville Carslile). Circa 1958. The very first high-power rocket motor certified was by U.S. Rockets (Jerry Irvine). Circa 1985. The very first APCP propellant model rocket motor made was by Rocket Development Corporation (Irv Wait). Circa 1970. The largest vendor of professional solid rockets in the world is Orbital ATK. See also Jetex (Aerodynamic lift) High-power rocketry Model rocket Solid-propellant rocket External links National Association of Rocketry (NAR) - Model Rocketry and High-Powered Rocketry Certifications Tripoli Rocketry Association (TRA) - High-power rocketry Certifications Canadian Association of Rocketry (CARWeb) - Model Rocketry and High-Powered Rocketry Certifications in Canada United Kingdom Rocketry Association - High-power rocketry Certifications References Model rocketry