I Class Rocket Motor

Ellis I150

Ellis Mountain
Unknown
Ø 38mm
Total Impulse
346.2Ns
Burn Time
2.75s
Avg Thrust
150.0N
Max Thrust
155.5N

Thrust Profile (N)

2.75s Burn Window

Engineered by Ellis Mountain, the I150 is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 346.2 Ns over a 2.75 second burn window.

With an average thrust of 150.0 N and a peak of 155.5 N, it features a neutral thrust curve optimal for general sport flying.

Technical Specifications

Tripoli Rocketry Association, Inc.
Diameter 38 mm
Length 229 mm
Hardware 38X285.7 38X314(D)
Delays (s) 20,P
Specific Impulse 205.4 s
Peak Thrust 212.94 N
Peak Time T+ 0.872s
T/W Ratio 36.23
Propellant Standard
Profile neutral
Type reload
Sparky No

Mass Budget

422g Total
Casing (Dry)
250.2g
59.3%
Propellant
171.8g
40.7%
Live Sizing
Flight Envelope

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