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  1. Ground hit velocity BMS 3" School Rocket | Rocketry Forum

    Aug 5, 2021 · I'm building my first mid power rocket and going with the Balsa Machining 3" 29mm School Rocket. I have the kit and have modeled in Open Rocket using exact measurements …

  2. Seeking Insights on Water Rocket Fins Optimization

    Oct 4, 2023 · Hello Rocketry Enthusiasts! I hope this post finds you all soaring high in your rocketry adventures! I'm a high school student currently navigating through the fascinating …

  3. Rocket Diameter and Length | Rocketry Forum - Model Rocketry …

    Sep 11, 2025 · Hi, I'm curious is there a recommended ratio of rocket length to diameter for the most efficient design?

  4. University team looking for advice: Movable fins or thrust vector ...

    Oct 6, 2024 · Question Hi everyone! We’re a university team just getting started with building model rockets, and one of our main goals is to develop an active control system. We’re …

  5. Yard Sale / Wanted | Rocketry Forum - Model Rocketry Forums

    Nov 4, 2025 · If you have a personal rocketry-related item for sale, or that you're looking for, this is where you list it. These are for one time sales items, no business sales. To post you must …

  6. Selection of the appropriate fin and control system to stabilize a ...

    Mar 17, 2023 · For example, this will not be the desired result if the rocket comes out of the pad and after it spins around a bit and stabilizes the angle at which it rotates. How can I determine …

  7. Rocket Workbench for FreeCAD v4.1.0 released

    Aug 29, 2015 · This version continues the development of a simplified CFD workflow, with some other features thrown in. This workbench can be added to FreeCAD using the Addon …

  8. Looking for a liquid motor + rocket? Half-Cat Rocketry

    May 7, 2017 · FWIW here is 369 pages of design/construction info on the Mojave Sphinx, apparently very similar to the Half-Cat rocket. 350 lb thrust for five seconds. A two-minute …

  9. USCRPL's Aftershock II becomes Highest and Fastest amateur …

    Nov 15, 2024 · Aftershock II has officially become the highest and fastest amateur rocket of all time! Following its successful launch and recovery on October 20, 2024, data from the on …

  10. GPS Trackers for Rocket - Rocketry Forum

    Jan 18, 2024 · Long story short I just got my Level 1 over the weekend and flew it low and slow. But now I might like to reach for the stars as it were lol. I'm terrified of losing my rocket though …