BurnSim 2.2 Beta now available - Longer trial period!

I'm happy to announce that version 2.2 Beta is now available for download from

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New features include thrust calculations based on nozzle dimensions (no more guessing at a thrust coefficient), nozzle optimization, a new UI, and more!

Online registration is now also available. Instead of emailing key files back and forth you can do it all from within BurnSim by clicking a button.

I've also increased the trial period from 7 to 14 days.

This is still in a beta stage, so please do report any issues to me at snipped-for-privacy@blastzone.com.

What is BurnSim?

BurnSim is a solid rocket steady-state ballistic simulation software. In a nutshell, input your motor, nozzle and propellant characteristics and BurnSim calculates the Kn through the burn and predicts estimated chamber pressure and motor performance. Once your motor design is in BurnSim, you can tweak the parameters such as nozzle diameter or grain core diameter and instantly see how the Kn, chamber pressure, and motor thrust is effected. BurnSim will also optimize your nozzle design. Once you're happy with the your motor design, BurnSim can then export a .ENG file for use in RockSim, wRasp or other rocket flight simulators. You may also export the data to a text file (comma delimited) for use in virtually any system. You can estimate your motor's performance and rocket's flight before you even cast a grain!

Thanks! Greg Deputy TRA#2911 Level 3

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