Model Rocket Motor 2 : A rocket motor that has a total impulse of no greater than 160 N-sec, an average thrust of no greater than 80 N, and a propellant weight of no greater than 62. 5 g (2. 2 oz)
NFPA 1125 Code for the Manufacture of Model Rocket and High Power Rocket Motors, 2001 ed. (Code: Mfg of Model Rocket and High Pwr Rocket Motors - Amer) {379 NFC}
NFPA 1127 Code for High Power Rocketry, 2008 ed. www.loyola.edu/~/media/department/ehs/.../nfpa%20c ode%20list.ashx, (Code: High Pwr Rocketry - Amer) {381 NFC}
