J Class Rocket Motor

Contrail J272-SP

Contrail Rockets
Unknown
Ø 54mm
Total Impulse
1065.5Ns
Burn Time
3.86s
Avg Thrust
276.0N
Max Thrust
573.0N

Thrust Profile (N)

3.86s Burn Window

Engineered by Contrail Rockets, the J272-SP is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 1065.5 Ns over a 3.86 second burn window.

With an average thrust of 276.0 N and a peak of 573.0 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 54 mm
Length 922 mm
Hardware Single Use
Delays (s) P
Specific Impulse —
Peak Thrust 572.64 N
Peak Time T+ 0.169s
T/W Ratio 16.11
Propellant Standard
Profile regressive
Type hybrid
Sparky Yes
Mass Budget Unavailable
Live Sizing
Flight Envelope

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