I Class Rocket Motor

SkyR I147

Sky Ripper Systems
Unknown
Ø 38mm
Total Impulse
519.5Ns
Burn Time
3.50s
Avg Thrust
147.0N
Max Thrust
497.3N

Thrust Profile (N)

3.50s Burn Window

Engineered by Sky Ripper Systems, the I147 is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 519.5 Ns over a 3.50 second burn window.

With an average thrust of 147.0 N and a peak of 497.3 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 711 mm
Hardware 38/400
Delays (s) P
Specific Impulse 200.6 s
Peak Thrust 392.3 N
Peak Time T+ 0.03s
T/W Ratio 15.5
Propellant Standard
Profile regressive
Type hybrid
Sparky No

Mass Budget

967g Total
Casing (Dry)
703.0g
72.7%
Propellant
264.0g
27.3%
Live Sizing
Flight Envelope

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Comparable I-Class Alternatives

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