Rocket building tools, calculators, and resources
Introduction Choosing the right body tube is one of the most fundamental decisions in model rocket design. The wrong size can limit your motor options, affect stability, or prevent compatible components from fitting. This comprehensive guide covers all standard model rocket body tube sizes, their dimensions, compatible components, and material options. Whether you’re building from…
Introduction The wrong parachute size can ruin your rocket’s recovery. Too small, and your rocket slams into the ground. Too large, and it drifts for minutes, potentially landing in trees or far from the launch field. This calculator and guide will help you determine the perfect parachute size for your specific rocket, motor, and flying…
Understanding Model Rocket Body Tube Sizing Model rocket body tubes use a historical designation system (BT-5, BT-20, BT-50, etc.) that can be confusing for builders working in metric units. This comprehensive guide provides exact metric equivalents for all standard body tube sizes, helping international rocketeers and 3D printing enthusiasts work with precise measurements. The BT…
