I Class Rocket Motor

AeroTech I357T

AeroTech
Blue Thunder
Ø 38mm
Total Impulse
342.0Ns
Burn Time
1.00s
Avg Thrust
357.0N
Max Thrust
432.8N

Thrust Profile (N)

1.00s Burn Window

Engineered by AeroTech, the I357T is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 342.0 Ns over a 1.00 second burn window.

With an average thrust of 357.0 N and a peak of 432.8 N, it features a regressive thrust curve optimal for general sport flying. It utilizes the Blue Thunder propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 203 mm
Hardware RMS-38/360
Delays (s) 6,8,10,12,14
Specific Impulse 199.9 s
Peak Thrust 351.77 N
Peak Time T+ 0.087s
T/W Ratio 106.1
Propellant Blue Thunder
Profile regressive
Type reload
Sparky No

Mass Budget

343g Total
Casing (Dry)
168.6g
49.2%
Propellant
174.4g
50.8%
Live Sizing
Flight Envelope

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Comparable I-Class Alternatives

I235WC

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No Curve Data
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Ø 38mm

I200W

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regressive
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I180W

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dual-peak
Total: 326 Ns
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I385F

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No Curve Data
Total: 326 Ns
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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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