Total Impulse
3682.0Ns
Burn Time
3.10s
Avg Thrust
1173.0N
Max Thrust
2892.0N
Thrust Profile (N)
3.10s Burn WindowEngineered by Contrail Rockets, the L1222-SM is a 75mm solid rocket motor designed for extreme high-power rocketry. As an official L-class motor, it delivers a total impulse of 3682.0 Ns over a 3.10 second burn window.
With an average thrust of 1173.0 N and a peak of 2892.0 N, it features a neutral thrust curve optimal for heavy rockets requiring high off-the-pad acceleration.
Technical Specifications
Tripoli Rocketry Association, Inc.Diameter 75 mm
Length 1371 mm
Hardware 75x1524 (3200CC)
Delays (s) P
Specific Impulse 477.5 s
Peak Thrust 2725 N
Peak Time T+ 0.5s
T/W Ratio 23.97
Propellant Standard
Profile neutral
Type hybrid
Sparky Yes
Mass Budget
4989g TotalCasing (Dry)
4203.0g
84.2%
Propellant
786.0g
15.8%
Live Sizing
Flight Envelope
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Comparable L-Class Alternatives
BB-75-2500
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Total: 2590 Ns
Ø 75mm
1685CC098L-L200
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2653L585-P
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L695BL
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Total: 2669 Ns
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SK-75-3500
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Total: 2700 Ns
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1685CC172L-L475
Hypertek
L
dual-peak
Total: 2774 Ns
Ø 75mm
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