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Nosecone detail please. Is it a Haack series?

Just thought some enterprising soul had already done the reverse engineering and came up with a better application.

I am in search of an open source, Windows compatible, alternative to the PerfectFilte DataCap.exe software for my pNut altimeter.

I have made three such launch controllers and am working on a forth. I use them for our TARC teams. I posted on this back in 2015. I first came up withCrank u the idea in 1982 and built a prototype. I submitted the idea to Estes and was awarded the "Design of the Month" award for January of...

I used a war surplus GN-38 generator from a field telephone and made a good launch controller that never needs batteries. You have to crank it for 45 seconds or so to build up the charge. Attached is an article I wrote but never got published.

This years TARC requires that the rocket come down as separate sections with the payload being the timed section. Can anyone tell me if OpenRocket can be set up to simulate the payload section descent rate separate from the sustainer section? I tried setting up the rocket with two stages with...

I like the newest version of OR where you can select a type of mass object. Any plans to include a hens egg as an option? There are a lot of TARC teams using OR and I am sure that it would be appreciated.