J Class Rocket Motor

Loki J320-LR

Loki Research
Loki Red
Ø 38mm
Total Impulse
720.9Ns
Burn Time
2.15s
Avg Thrust
335.0N
Max Thrust
550.9N

Thrust Profile (N)

2.15s Burn Window

Engineered by Loki Research, the J320-LR is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official J-class motor, it delivers a total impulse of 720.9 Ns over a 2.15 second burn window.

With an average thrust of 335.0 N and a peak of 550.9 N, it features a regressive thrust curve optimal for general sport flying. It utilizes the Loki Red 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) 5,8,10,14
Specific Impulse 197.5 s
Peak Thrust 534.03 N
Peak Time T+ 0.016s
T/W Ratio 45.41
Propellant Loki Red
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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