ALTOONA, Wisconsin USA — The following motors have been certified by NAR Standards & Testing as general use Model Power Rocket Motors effective January 31, 2007.

Aerotech:
F27R
29mm x 83mm
F27R-4, 8
49.6 Newton-seconds total impulse*
37.7 Newtons Peak Thrust*
24.4 Newtons Average Thrust*

28.4 grams propellant mass
R = Redline Propellant
*-Sea level corrected value

Aerotech:
G71R
29mm x 124mm
G71R-4, 7, 10
107 Newton-seconds total impulse*
117 Newtons Peak Thrust*
71.0 Newtons Average Thrust*

56.9 grams propellant mass
R = Redline Propellant
*-Sea level corrected value

Aerotech:
G79W
29mm x 146mm
G79W-4, 7, 10
108 Newton-seconds total impulse*
93.9 Newtons Peak Thrust*
72.9 Newtons Average Thrust*

60.1 grams propellant mass
W = White Lightning Propellant
*-Sea level corrected value

John Lyngdal
NAR Standards & Testing Co-Chairman