H Class Rocket Motor

Gorilla H225BL

Gorilla Rocket Motors
Black Lightning
Ø 38mm
Total Impulse
226.0Ns
Burn Time
1.20s
Avg Thrust
225.0N
Max Thrust
240.3N

Thrust Profile (N)

1.20s Burn Window

Engineered by Gorilla Rocket Motors, the H225BL is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official H-class motor, it delivers a total impulse of 226.0 Ns over a 1.20 second burn window.

With an average thrust of 225.0 N and a peak of 240.3 N, it features a dual-peak 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 249 mm
Hardware 38/390
Delays (s) P
Specific Impulse 133.2 s
Peak Thrust 305.17 N
Peak Time T+ 0.618s
T/W Ratio 49.22
Propellant Black Lightning
Profile dual-peak
Type reload
Sparky Yes

Mass Budget

466g Total
Casing (Dry)
293.0g
62.9%
Propellant
173.0g
37.1%
Live Sizing
Flight Envelope

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