Engine Testing Notices


R53 New Motor Certifications 14 Sep 1998

The following motors have been certified by NAR Standards & Testing as of September 1, 1998 for general use as model rocket motors. They are certified for contest use effective October 31, 1998.

The following are Aerotech reloadable motors, certified only with the indicated size casings and manufacturer supplied nozzles, end closures, delays, and propellant slugs.

        24mm x 70mm RMS-24/40 Casing:
            D9-4,7 (20.0 Newton-seconds total impulse, 10.1 grams propellant mass)
            F12-5 (45.0 Newton-seconds total impulse, 30.3 grams propellant mass)

        29mm x 124mm RMS-29/40-120 Casing:
            E23-5,8 (37.0 Newton-seconds total impulse, 17.4 grams propellant mass)
            F22-7 (65.0 Newton-seconds total impulse, 46.3 grams propellant mass)
            F52-6,8,11 (78.0 Newton-seconds total impulse, 36.6 grams propellant mass)

Jim Cook,
Secretary for NAR Standards & Testing

Jack Kane,


Return to the S&T Chronology