I Class Rocket Motor

AeroTech HP-I140W

AeroTech
White Lightning
Ø 38mm
Total Impulse
336.0Ns
Burn Time
2.40s
Avg Thrust
140.0N
Max Thrust
181.0N

Thrust Profile (N)

2.40s Burn Window

Engineered by AeroTech, the HP-I140W is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 336.0 Ns over a 2.40 second burn window.

With an average thrust of 140.0 N and a peak of 181.0 N, it features a dual-peak thrust curve optimal for general sport flying. It utilizes the White Lightning propellant formulation, dictating its specific impulse and exhaust signature.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 202.7 mm
Hardware Single Use
Delays (s) 6,8,10,12,14
Specific Impulse 187.2 s
Peak Thrust 179.02 N
Peak Time T+ 0.419s
T/W Ratio 40.09
Propellant White Lightning
Profile dual-peak
Type SU
Sparky No

Mass Budget

356g Total
Casing (Dry)
173.0g
48.6%
Propellant
183.0g
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

Gorilla

I
neutral
Total: 328 Ns
Ø 38mm

I161W

AeroTech

I
dual-peak
Total: 329 Ns
Ø 38mm
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