J Class Rocket Motor

Contrail J800-HP

Contrail Rockets
Unknown
Ø 38mm
Total Impulse
928.0Ns
Burn Time
1.20s
Avg Thrust
758.0N
Max Thrust
4840.0N

Thrust Profile (N)

1.20s Burn Window

Engineered by Contrail Rockets, the J800-HP is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 928.0 Ns over a 1.20 second burn window.

With an average thrust of 758.0 N and a peak of 4840.0 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 1227 mm
Hardware 38 48 XXF HP(685CC)
Delays (s) P
Specific Impulse 569.9 s
Peak Thrust 1830.61 N
Peak Time T+ 0.002s
T/W Ratio 67.31
Propellant Standard
Profile regressive
Type hybrid
Sparky No

Mass Budget

1148g Total
Casing (Dry)
982.0g
85.5%
Propellant
166.0g
14.5%
Live Sizing
Flight Envelope

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