L Class Rocket Motor

AeroTech L1170FJ

AeroTech
Black Max
Ø 75mm
Total Impulse
4232.0Ns
Burn Time
3.70s
Avg Thrust
1141.0N
Max Thrust
1489.0N

Thrust Profile (N)

3.70s Burn Window

Engineered by AeroTech, the L1170FJ is a 75mm solid rocket motor designed for extreme high-power rocketry. As an official L-class motor, it delivers a total impulse of 4232.0 Ns over a 3.70 second burn window.

With an average thrust of 1141.0 N and a peak of 1489.0 N, it features a regressive thrust curve optimal for general sport flying. It utilizes the Black Max propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 75 mm
Length 665 mm
Hardware RMS-75/5120
Delays (s) P
Specific Impulse 154.1 s
Peak Thrust 1473.29 N
Peak Time T+ 0.113s
T/W Ratio 23.31
Propellant Black Max
Profile regressive
Type reload
Sparky No

Mass Budget

4990g Total
Casing (Dry)
2190.0g
43.9%
Propellant
2800.0g
56.1%
Live Sizing
Flight Envelope

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