J Class Rocket Motor

Cesaroni 649J335-15A

Cesaroni Technology
Red Lightning
Ø 38mm
Total Impulse
649.2Ns
Burn Time
1.93s
Avg Thrust
335.5N
Max Thrust
410.6N

Thrust Profile (N)

1.93s Burn Window

Engineered by Cesaroni Technology, the 649J335-15A is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 649.2 Ns over a 1.93 second burn window.

With an average thrust of 335.5 N and a peak of 410.6 N, it features a regressive thrust curve optimal for general sport flying. It utilizes the Red Lightning propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Canadian Association of Rocketry
Diameter 38 mm
Length 367 mm
Hardware Pro38-5G
Delays (s) 6,8,10,12,15
Specific Impulse 193.8 s
Peak Thrust 409.54 N
Peak Time T+ 0.038s
T/W Ratio 54.55
Propellant Red Lightning
Profile regressive
Type reload
Sparky No

Mass Budget

627g Total
Casing (Dry)
285.5g
45.5%
Propellant
341.5g
54.5%
Live Sizing
Flight Envelope

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