I Class Rocket Motor

Gorilla I392BL

Gorilla Rocket Motors
Black Lightning
Ø 38mm
Total Impulse
416.1Ns
Burn Time
1.20s
Avg Thrust
392.0N
Max Thrust
508.2N

Thrust Profile (N)

1.20s Burn Window
Thrust Curve Missing
No .ENG file data recorded for this motor.

Engineered by Gorilla Rocket Motors, the I392BL is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 416.1 Ns over a 1.20 second burn window.

With an average thrust of 392.0 N and a peak of 508.2 N, it features a thrust curve optimal for general sport flying. It utilizes the Black Lightning propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 370 mm
Hardware 38/640
Delays (s) P
Specific Impulse 157.1 s
Peak Thrust
Peak Time
T/W Ratio 60.82
Propellant Black Lightning
Profile Unknown
Type reload
Sparky Yes

Mass Budget

657g Total
Casing (Dry)
387.0g
58.9%
Propellant
270.0g
41.1%
Live Sizing
Flight Envelope

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