J Class Rocket Motor

Loki J670LB

Loki Research
Loki Blue
Ø 54mm
Total Impulse
1269.8Ns
Burn Time
1.89s
Avg Thrust
669.9N
Max Thrust
824.1N

Thrust Profile (N)

1.89s Burn Window

Engineered by Loki Research, the J670LB is a 54mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 1269.8 Ns over a 1.89 second burn window.

With an average thrust of 669.9 N and a peak of 824.1 N, it features a dual-peak 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 54 mm
Length 330 mm
Hardware 54/1200
Delays (s) P
Specific Impulse 223.9 s
Peak Thrust 797.11 N
Peak Time T+ 0.765s
T/W Ratio 56.71
Propellant Loki Blue
Profile dual-peak
Type reload
Sparky No

Mass Budget

1204.2g Total
Casing (Dry)
626.2g
52.0%
Propellant
578.0g
48.0%
Live Sizing
Flight Envelope

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