Total Impulse
664.0Ns
Burn Time
4.92s
Avg Thrust
134.0N
Max Thrust
201.6N
Thrust Profile (N)
4.92s Burn WindowEngineered by Propulsion Polymers, the 664NS-J140 is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 664.0 Ns over a 4.92 second burn window.
With an average thrust of 134.0 N and a peak of 201.6 N, it features a regressive thrust curve optimal for sustainer stages and high-altitude attempts.
Technical Specifications
Canadian Association of RocketryDiameter 38 mm
Length 881 mm
Hardware Single Use
Delays (s) P
Specific Impulse 125.7 s
Peak Thrust 320 N
Peak Time T+ 0.2s
T/W Ratio 11.72
Propellant Standard
Profile regressive
Type hybrid
Sparky No
Mass Budget
1165.8g TotalCasing (Dry)
627.3g
53.8%
Propellant
538.5g
46.2%
Live Sizing
Flight Envelope
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Comparable J-Class Alternatives
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