J Class Rocket Motor

Cesaroni 970J394-13A

Cesaroni Technology
Green3
Ø 38mm
Total Impulse
970.4Ns
Burn Time
2.46s
Avg Thrust
394.1N
Max Thrust
515.7N

Thrust Profile (N)

2.46s Burn Window

Engineered by Cesaroni Technology, the 970J394-13A is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 970.4 Ns over a 2.46 second burn window.

With an average thrust of 394.1 N and a peak of 515.7 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Green3 propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Canadian Association of Rocketry
Diameter 38 mm
Length 500 mm
Hardware Pro38-6GXL
Delays (s) 4,6,8,10,13
Specific Impulse 172.9 s
Peak Thrust 491.76 N
Peak Time T+ 1.885s
T/W Ratio 42.79
Propellant Green3
Profile dual-peak
Type reload
Sparky No

Mass Budget

938.9g Total
Casing (Dry)
366.8g
39.1%
Propellant
572.1g
60.9%
Live Sizing
Flight Envelope

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