I Class Rocket Motor

Contrail I500-HP

Contrail Rockets
Unknown
Ø 38mm
Total Impulse
336.0Ns
Burn Time
0.70s
Avg Thrust
479.0N
Max Thrust
1069.0N

Thrust Profile (N)

0.70s Burn Window

Engineered by Contrail Rockets, the I500-HP 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 0.70 second burn window.

With an average thrust of 479.0 N and a peak of 1069.0 N, it features a regressive thrust curve optimal for heavy rockets requiring high off-the-pad acceleration.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 719 mm
Hardware 38 28 XF HP (275CC)
Delays (s) P
Specific Impulse 206.3 s
Peak Thrust 1155.16 N
Peak Time T+ 0.001s
T/W Ratio 61.03
Propellant Standard
Profile regressive
Type hybrid
Sparky No

Mass Budget

800g Total
Casing (Dry)
634.0g
79.3%
Propellant
166.0g
20.8%
Live Sizing
Flight Envelope

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Comparable I-Class Alternatives

I235WC

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I180W

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I385F

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I223GT

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I161W

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