R109 NAR S&T Contest Motor Certifications May 5, 2007
The following model rocket motors have been upgraded by
NAR Standards & Testing to allow their use in NAR Contest
events effective May 5, 2007.


R G71R-4,7,10
29 x 124mm, 29/40-120 Hardware
107 Ns Total Impulse
56.9 grams Propellant Mass

S G77R-4,7,10
29 x 146mm
103 Ns Total Impulse
59.1 grams Propellant Mass

S G79W-4,7,10
29 x 146mm
108 Ns Total Impulse
60.1 grams Propellant Mass

Propellant Key: R = Redline
    W = White Lightning

R = Reloadable Motor
S = Single Use Motor

Jack Kane
John Lyngdal
NAR Standards & Testing

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