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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 · Rocket Launcher for Kids with Launch Set Up to 200 Ft Air Model Rocket Toy with Parachute, Space Ship Outdoor Toys for Ages 8-13 Boy Birthday Gift Birthday Gift for Kids …

  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. Where do you put your Name / phone # on the rocket?

    Mar 22, 2025 · Put your contact data on your rocket in multiple locations. Murphy's Law says you'll easily recover the marked rocket part, but the unmarked parts are the ones people will pick up …

  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. 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 …

  10. 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% …