I Class Rocket Motor

AeroTech I154J

AeroTech
Blackjack
Ø 38mm
Total Impulse
378.0Ns
Burn Time
2.99s
Avg Thrust
154.0N
Max Thrust
170.5N

Thrust Profile (N)

2.99s Burn Window

Engineered by AeroTech, the I154J is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 378.0 Ns over a 2.99 second burn window.

With an average thrust of 154.0 N and a peak of 170.5 N, it features a regressive thrust curve optimal for general sport flying. It utilizes the Blackjack propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 241 mm
Hardware RMS-38/480
Delays (s) 4,6,8,10
Specific Impulse 152.4 s
Peak Thrust 156.81 N
Peak Time T+ 0.466s
T/W Ratio 31.91
Propellant Blackjack
Profile regressive
Type reload
Sparky No

Mass Budget

491.904g Total
Casing (Dry)
239.1g
48.6%
Propellant
252.8g
51.4%
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

I223GT

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I
neutral
Total: 328 Ns
Ø 38mm

I161W

AeroTech

I
dual-peak
Total: 329 Ns
Ø 38mm
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