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In this video, I test whether my modified V-2 rocket is stable enough to fly safely. I built an Estes V-2 semiscale model rocket kit, but I trimmed the fins to make it closer to actual scale. Cutting the fin area changes the center of pressure, which could make the rocket unstable in flight. To compensate, I added clay weight to the nose cone to move the center of gravity forward.
But how do I know if it's actually stable now? I use a classic technique called the swing test — a simple, reliable method that model rocketeers have used for decades to verify rocket stability before launch. All you need is some string and a little open space. This test is perfect for beginners who want to check their rockets without complicated calculations.
Whether you're just getting into model rocketry or you've modified a kit like I did, the swing test is an essential skill to have in your toolbox. Watch to see if my V-2 passes the test!
Affiliate links!
đź“š Learn more about model rocketry:
The Handbook of Model Rocketry: https://amzn.to/35XRbCY
Make: Rockets: Down-to-Earth Rocket Science: https://amzn.to/3JkOB7z
(If you buy something through these links, I’ll get a small commission—at no extra cost to you!)
đź’ˇ For more info on safe and fun rocketry, visit the National Association of Rocketry: https://www.nar.org/
