J Class Rocket Motor

Loki J712-LB

Loki Research
Loki Blue
Ø 38mm
Total Impulse
751.9Ns
Burn Time
1.17s
Avg Thrust
641.0N
Max Thrust
1277.5N

Thrust Profile (N)

1.17s Burn Window

Engineered by Loki Research, the J712-LB is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 751.9 Ns over a 1.17 second burn window.

With an average thrust of 641.0 N and a peak of 1277.5 N, it features a regressive thrust curve optimal for general sport flying. It utilizes the Loki Blue propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 406 mm
Hardware 38/740
Delays (s) 7,9,12,15
Specific Impulse 206 s
Peak Thrust 892.86 N
Peak Time T+ 0.01s
T/W Ratio 86.9
Propellant Loki Blue
Profile regressive
Type reload
Sparky No

Mass Budget

752g Total
Casing (Dry)
380.0g
50.5%
Propellant
372.0g
49.5%
Live Sizing
Flight Envelope

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