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

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 …

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 …

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 …

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% …

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 …

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 …

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 …

Dec 4, 2016 · Has anyone attempted a flying model version of the Excelsior rocket ship from the recent film, "Fantastic Four: First Steps." It has an incredible retro sci-fi vibe and seems to …

Jan 13, 2025 · To me, but "largest model rocket you can buy " implies a kit. That means the link Justin provided may well be the current largest. I've helped build a 52 foot tall rocket. I've …