I Class Rocket Motor

AeroTech I40N-P

AeroTech
Warp 9
Ø 38mm
Total Impulse
374.9Ns
Burn Time
9.95s
Avg Thrust
37.7N
Max Thrust
101.7N

Thrust Profile (N)

9.95s Burn Window

Engineered by AeroTech, the I40N-P is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 374.9 Ns over a 9.95 second burn window.

With an average thrust of 37.7 N and a peak of 101.7 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration. It utilizes the Warp 9 propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 203 mm
Hardware Single Use
Delays (s) P
Specific Impulse 194 s
Peak Thrust 95.02 N
Peak Time T+ 0.134s
T/W Ratio 10.69
Propellant Warp 9
Profile regressive
Type SU
Sparky No

Mass Budget

359.9g Total
Casing (Dry)
162.9g
45.3%
Propellant
197.0g
54.7%
Live Sizing
Flight Envelope

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Comparable I-Class Alternatives

I235WC

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No Curve Data
Total: 324 Ns
Ø 38mm

I200W

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regressive
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I180W

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Total: 326 Ns
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I385F

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No Curve Data
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I223GT

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neutral
Total: 328 Ns
Ø 38mm

I161W

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dual-peak
Total: 329 Ns
Ø 38mm
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