I Class Rocket Motor

Gorilla I223GT

Gorilla Rocket Motors
Green Tornado
Ø 38mm
Total Impulse
327.9Ns
Burn Time
1.40s
Avg Thrust
235.0N
Max Thrust
240.3N

Thrust Profile (N)

1.40s Burn Window

Engineered by Gorilla Rocket Motors, the I223GT is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 327.9 Ns over a 1.40 second burn window.

With an average thrust of 235.0 N and a peak of 240.3 N, it features a neutral thrust curve optimal for general sport flying. It utilizes the Green Tornado 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 184.7 s
Peak Thrust 260 N
Peak Time T+ 0.887s
T/W Ratio 51.41
Propellant Green Tornado
Profile neutral
Type reload
Sparky No

Mass Budget

466g Total
Casing (Dry)
285.0g
61.2%
Propellant
181.0g
38.8%
Live Sizing
Flight Envelope

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Comparable I-Class Alternatives

I235WC

Gorilla

I
No Curve Data
Total: 324 Ns
Ø 38mm

I200W

AeroTech

I
regressive
Total: 325 Ns
Ø 29mm

I180W

AeroTech

I
dual-peak
Total: 326 Ns
Ø 38mm

I385F

Kosdon

I
No Curve Data
Total: 326 Ns
Ø 29mm

I161W

AeroTech

I
dual-peak
Total: 329 Ns
Ø 38mm

I218R

AeroTech

I
regressive
Total: 330 Ns
Ø 38mm
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