J Class Rocket Motor

AeroTech J99N

AeroTech
Warp 9
Ø 54mm
Total Impulse
945.2Ns
Burn Time
10.20s
Avg Thrust
92.4N
Max Thrust
151.9N

Thrust Profile (N)

10.20s Burn Window

Engineered by AeroTech, the J99N is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 945.2 Ns over a 10.20 second burn window.

With an average thrust of 92.4 N and a peak of 151.9 N, it features a regressive thrust curve optimal for sustainer stages and high-altitude attempts. It utilizes the Warp 9 propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 54 mm
Length 231 mm
Hardware RMS-54/852
Delays (s) P
Specific Impulse 173.3 s
Peak Thrust 144.31 N
Peak Time T+ 0.242s
T/W Ratio 10.48
Propellant Warp 9
Profile regressive
Type reload
Sparky No

Mass Budget

899g Total
Casing (Dry)
343.0g
38.2%
Propellant
556.0g
61.8%
Live Sizing
Flight Envelope

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Comparable J-Class Alternatives

J245-BG

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699J145-19A

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J250W

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