Engine Testing Notices


R50 New Motor Certifications 6 Aug 1998

The following motors have been certified by NAR Standards & Testing as of August 5, 1998 for general use as high power rocket motors. They will not be certified for NAR contest use as they are not model rocket motors. The following are Kosdon reloadable motors, also known as "Kosdon Truly Recyclable Motors." They are certified only with the indicated size casing and manufacturer supplied nozzle, end closures, delays, and propellant slugs:

        J275-6.5 (1150 N-Sec total impulse, 625 grams propellant mass)
        K450-12  (2400 N-Sec total impulse, 1080 grams propellant mass)
        K777-11  (2400 N-Sec total impulse, 1080 grams propellant mass)

Jim Cook,
Secretary for NAR Standards & Testing

Jack Kane,


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