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  1. 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% in …

  2. NAR Level 2 Certification. Rocket recommendations

    Feb 27, 2024 · I'm looking for a rocket to build for my L2 cert. Any favorites or recommendations would be appreciated.

  3. EVENT - Indiana Rocketry, Inc. (IRI) ThunderStruck 2024 Regional …

    Aug 17, 2022 · The ThunderStruck 2024 Regional Rocket Launch will be held on Friday, April 12th through Sunday, April 14th, 2024, at the Pence High Power Launch Field near Pence, Indiana, off …

  4. ORCUS - TRA Level 3 rocket | Rocketry Forum - Model Rocketry Forums

    Feb 11, 2024 · By Mike KQ9PPosted on December 16, 2024Posted in L3 UPDATED: 16 December 2024 PROJECT: Tripoli Rocketry Association (TRA) Level 3 Certification Rocket NAME: ORCUS is …

  5. Current Best onboard Rocket Video Camera | Rocketry Forum - Model ...

    Jun 13, 2024 · As of the start of 2025, what is the best (or near best) onboard video camera to house with a 2. 1" / 54mm rocket that is - 1. Not necessarily the cheapest 2. Gets good - but not superb …

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

    Feb 23, 2026 · 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 either be a …

  7. Rocketry Forum - Model Rocketry Forums

    Feb 12, 2026 · Model rocketry enthusiast forum & rocket for sale classifieds. Rocketry forums for experts & beginners. Engines, recovery, electronics, rocketry software.

  8. Open Rocket warning - Stage began to tumble under thrust

    Feb 10, 2017 · While running a simulation on Open Rocket, I got the warning message "Stage began to tumble under thrust". Ran the simulation again and the warning went away, got the green check.

  9. Download OpenRocket designs - Rocketry Forum

    Sep 5, 2022 · I am new to rocket software, and mid power rockets I want to try OpenRocket and was thinking that some must have made a lot of designs. Is there a place (Website) where there is …

  10. Supersonic Rocket Building Materials - Rocketry Forum

    Feb 15, 2016 · A lot depends on how long your rocket is in the transonic zone. You don't want to be hanging out between Mach .9 and 1.1 very long, especially with a cardboard rocket. I have thought …