J Class Rocket Motor

KBA J740G

Kosdon by AeroTech
Mojave Green
Ø 38mm
Total Impulse
682.0Ns
Burn Time
0.90s
Avg Thrust
815.0N
Max Thrust
956.0N

Thrust Profile (N)

0.90s Burn Window

Engineered by Kosdon by AeroTech, the J740G is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 682.0 Ns over a 0.90 second burn window.

With an average thrust of 815.0 N and a peak of 956.0 N, it features a neutral thrust curve optimal for general sport flying. It utilizes the Mojave Green propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 370 mm
Hardware AMW 38-640
Delays (s) P
Specific Impulse 225.7 s
Peak Thrust 956.51 N
Peak Time T+ 0.649s
T/W Ratio 114.75
Propellant Mojave Green
Profile neutral
Type reload
Sparky No

Mass Budget

724g Total
Casing (Dry)
416.0g
57.5%
Propellant
308.0g
42.5%
Live Sizing
Flight Envelope

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