J Class Rocket Motor

Cesaroni 648J285-15A

Cesaroni Technology
Classic
Ø 38mm
Total Impulse
648.0Ns
Burn Time
2.26s
Avg Thrust
287.5N
Max Thrust
369.3N

Thrust Profile (N)

2.26s Burn Window

Engineered by Cesaroni Technology, the 648J285-15A is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 648.0 Ns over a 2.26 second burn window.

With an average thrust of 287.5 N and a peak of 369.3 N, it features a neutral thrust curve optimal for general sport flying. It utilizes the Classic propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Canadian Association of Rocketry
Diameter 38 mm
Length 360 mm
Hardware Pro38-5G
Delays (s) 6,8,10,12,15
Specific Impulse 211.4 s
Peak Thrust 369.26 N
Peak Time T+ 0.75s
T/W Ratio 49.26
Propellant Classic
Profile neutral
Type reload
Sparky No

Mass Budget

595g Total
Casing (Dry)
282.5g
47.5%
Propellant
312.5g
52.5%
Live Sizing
Flight Envelope

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