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  1. American Rocketry Challenge 2026 Registration Open

    Jan 18, 2009 · Registration has opened for the American Rocketry Challenge (ARC, formerly known as TARC) program for the 2025-2026 school year, the 24th year of the program. …

  2. K'Tesh's OpenRocket Files... | Page 21 - Rocketry Forum

    Mar 27, 2013 · Adding a transition would "cut off" the backside of the rocket, leading to the wrong appearance (and perhaps drag calculation?). I know that the retainer looks to be too big in the …

  3. ANNOUNCEMENT: OpenRocket 24.12 beta 1 is now available for …

    Jul 14, 2015 · The OpenRocket team is pleased to release the first public beta for OpenRocket 24.12. Standard caveats for beta releases apply: we have no known outstanding bugs, but …

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

    Dec 8, 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 …

  5. 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 …

  6. Rocketry Forum - Model Rocketry Forums

    Jan 16, 2025 · Model rocketry enthusiast forum & rocket for sale classifieds. Rocketry forums for experts & beginners. Engines, recovery, electronics, rocketry software.

  7. 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 …

  8. 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 …

  9. OpenRocket... The Tutorial (A first time user's guide to creating OR ...

    Mar 27, 2013 · Hi, K'Tesh here... I volunteered to help create an OpenRocket tutorial for NAR's Sports Rocketry magazine, but due to issues with time and trying to find the right subject, I …

  10. Rocket body separation | Rocketry Forum - Model Rocketry Forums

    Dec 9, 2024 · Hey, guys. I’m currently designing my next build, which I’m hoping to be an L1/L2 certifiable rocket. I’ve decided to go against the grain a bit with this design, so before I drop a …