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Aerospace

OpenRocket Model Rocket Design

Sep 2025

OpenRocketSolidWorks3D PrintingFlight Simulation

A small-scale model rocket optimized in OpenRocket for a 1.5–2.0 caliber stability margin, with custom 3D-printed fins and nose cone, launched and compared against the simulation.

Caliber stability margin
1.5–2.0
Predicted apogee
~300 ft
OpenRocket Model Rocket Design

Overview

I engineered a small-scale model rocket for aerodynamic stability and weight efficiency, using OpenRocket to tune the airframe geometry to a 1.5–2.0 caliber stability margin.

Design trade-off

I modeled custom 3D-printed fins and a nose cone to hit specific centre-of-mass and centre-of-pressure targets. Mass was added deliberately to improve stability, at the cost of maximum altitude.

Launch

The rocket was launched and recovered at a predicted apogee of about 300 ft, validating the OpenRocket simulation against post-flight data.