Total Impulse
556.0Ns
Burn Time
2.00s
Avg Thrust
240.0N
Max Thrust
279.0N
Thrust Profile (N)
2.00s Burn WindowEngineered by Cesaroni Technology, the I240 is a 38mm solid rocket motor designed for high-power rocketry (HPR). As an official I-class motor, it delivers a total impulse of 556.0 Ns over a 2.00 second burn window.
With an average thrust of 240.0 N and a peak of 279.0 N, it features a dual-peak thrust curve optimal for general sport flying.
Technical Specifications
Tripoli Rocketry Association, Inc.Diameter 38 mm
Length 302 mm
Hardware Pro38-4G
Delays (s) P
Specific Impulse 203.1 s
Peak Thrust 327.04 N
Peak Time T+ 0.755s
T/W Ratio 48.58
Propellant Standard
Profile dual-peak
Type reload
Sparky No
Mass Budget
503.552g TotalCasing (Dry)
224.6g
44.6%
Propellant
279.0g
55.4%
Live Sizing
Flight Envelope
Design wings in your spreadsheet
AeroSheet loads airfoils directly into Google Sheets. Polars, 3D splines, Fusion 360 export, without leaving your spreadsheet.
Comparable I-Class Alternatives
Veenie Kit
Need a custom engineering simulator?
The 3D engine on this page is built by Veenie Aerospace. We build bespoke, browser-native digital twins, aerodynamic simulators, and AI physics tools for UAV startups and defense contractors.