J Class Rocket Motor

Contrail J358-BG

Contrail Rockets
Unknown
Ø 54mm
Total Impulse
913.9Ns
Burn Time
2.69s
Avg Thrust
340.8N
Max Thrust
1146.6N

Thrust Profile (N)

2.69s Burn Window

Engineered by Contrail Rockets, the J358-BG is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 913.9 Ns over a 2.69 second burn window.

With an average thrust of 340.8 N and a peak of 1146.6 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 54 mm
Length 922 mm
Hardware Single Use
Delays (s) P
Specific Impulse 207 s
Peak Thrust 726.03 N
Peak Time T+ 0.008s
T/W Ratio 19.93
Propellant Standard
Profile regressive
Type hybrid
Sparky No

Mass Budget

1743g Total
Casing (Dry)
1293.0g
74.2%
Propellant
450.0g
25.8%
Live Sizing
Flight Envelope

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