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  1. 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 …

  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. Chris' Rocket Supplies | Rocketry Forum - Model Rocketry Forums

    Nov 22, 2025 · I ordered from Chris early this week in the evening. I got an order notification almost instantly. That didn't surprise me. The next day I got a notification that the order was …

  4. ARC Rocket Help | Rocketry Forum - Model Rocketry Forums

    Dec 9, 2025 · Also, an ARC rocket should not require a tracker at all. Between the low altitudes and the required quick total flight times, I would certainly focus on getting a solid rocket design …

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

    Dec 16, 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. Fineness and Stability Margin in OpenRocket - Rocketry Forum

    Apr 4, 2023 · I have a tall/thin rocket with a fineness (aka aspect ratio or length to diameter ratio) of ~26 (80” long 3.1” diameter). As currently configured, it has a stability margin of 3.7/14.6% …

  7. 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 …

  8. GPS Trackers for Rocket - Rocketry Forum

    Jan 18, 2024 · I'm terrified of losing my rocket though and am contemplating investing in some sort of tracking system. I know these "egg timers" are suggested but yes, I'm intimidated by all …

  9. Hybrid Rocket Build Thread - Rocketry Forum

    May 29, 2023 · Hello everyone, I am currently in the process of building a HPR hybrid rocket motor and am posting to get opinions, advice, and help. The motor has a theoretical average …

  10. 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 …