Thrust Profile (N)
0.62s Burn WindowEngineered by AeroTech, the G142 is a 29mm solid rocket motor designed for model rocketry. As an official G-class motor, it delivers a total impulse of 84.3 Ns over a 0.62 second burn window.
With an average thrust of 135.9 N and a peak of 173.9 N, it features a neutral thrust curve optimal for general sport flying. It utilizes the 8222ALF propellant formulation, dictating its specific impulse and exhaust signature.
Technical Specifications
National Association of RocketryDiameter 29 mm
Length 113 mm
Hardware Single Use
Delays (s) 6,8,10,12,14
Specific Impulse 195.3 s
Peak Thrust 173.38 N
Peak Time T+ 0.15s
T/W Ratio 141.36
Propellant 8222ALF
Profile neutral
Type SU
Sparky No
Mass Budget
98g TotalCasing (Dry)
54.0g
55.1%
Propellant
44.0g
44.9%
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.
Install in Google Sheets coming soon Comparable G-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.