Engine Testing Notices

The following motors have been certified by NAR Standards & Testing for general use as model rocket motors effective May 6, 2001. They are certified for NAR contest use effective August 17, 2001. This contest use date is more than the usual 60 days from the general use certification date because it is adjusted for distribution chain delays, thus allowing all contestants to avail themselves of this motor. They are not certified for contest use at NARAM-43 because NARAM-43 occurs before this date.

Estes:
    24mm x 95mm:
        E9-0,4,6,8,P (29.5 Newton-seconds total impulse, 35.8 grams propellant mass)

The following motors have been certified by NAR Standards & Testing for general use as model rocket motors effective June 18, 2001. They are certified for NAR contest use effective August 17, 2001. They are not certified for contest use at NARAM-43 because NARAM-43 occurs before this date.

Estes:
    18mm x 70mm:
        1/2A6-2 (1.25 Newton-seconds total impulse, 2.6 grams propellant mass)

    24mm x 70mm:
        C11-0,3,5,7 (9.0 Newton-seconds total impulse, 12.0 grams propellant mass)

The following motors have been certified by NAR Standards & Testing for general use as model rocket motors effective June 18, 2001. They are currently certified for NAR contest use. The previous announcement that they would be decertified for NAR contest use effective July 1, 2001 is rescinded. They are now certified for NAR contest use indefinately. They may be used for contests at NARAM-43.

Estes:
    18mm x 70mm:
        B6-0 (4.9 Newton-seconds total impulse, 5.6 grams propellant mass)

    24mm x 70mm:
        D12-7 (17.0 Newton-seconds total impulse, 21.1 grams propellant mass)

Jim Cook,
Secretary for NAR Standards & Testing

Jack Kane,
Chairman

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