J Class Rocket Motor

AMW 977J400-P

Animal Motor Works
Black Bear
Ø 54mm
Total Impulse
976.9Ns
Burn Time
2.42s
Avg Thrust
403.6N
Max Thrust
499.4N

Thrust Profile (N)

2.42s Burn Window

Engineered by Animal Motor Works, the 977J400-P is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 976.9 Ns over a 2.42 second burn window.

With an average thrust of 403.6 N and a peak of 499.4 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the Black Bear propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Canadian Association of Rocketry
Diameter 54 mm
Length 326 mm
Hardware AMW 54-1050
Delays (s) P
Specific Impulse 137.7 s
Peak Thrust 480.55 N
Peak Time T+ 1.365s
T/W Ratio 29.77
Propellant Black Bear
Profile dual-peak
Type reload
Sparky No

Mass Budget

1382g Total
Casing (Dry)
659.0g
47.7%
Propellant
723.0g
52.3%
Live Sizing
Flight Envelope

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