Open Source
Liquid Rocket Engines
Half Cat Rocketry is an organization dedicated to developing affordable and reasonable amateur liquid rocket engine technology. Our goal is to make liquid rockets accessible to students and individuals by sharing our designs and knowledge.
Latest Activity
Mojave Sphinx Launch 9
Half Cat Rocketry launched Mojave Sphinx for the ninth time. The new fuel for this flight was CatPunRed, which included lithium chloride for a deep red flame.
Kit Fox Launch
Julian Rice launched Kit Fox, a highly-optimized Half Cat inspired rocket to 18,000’, winning a FAR Dollar-Per-Foot prize.
Darcy 2 Launch 2
YellowJacket Space Program (Georgia Tech) launched Darcy 2, their second Half Cat inspired rocket, on a successful flight to 30,000’, winning a FAR Dollar-Per-Foot prize.
Support Half Cat Rocketry
Rocket engines are expensive, and they take time. We’re dedicated to providing the rocketry community with a totally unique and open-source architecture, but it comes out of our own pockets and hours in the day. If you find our work to be useful, please consider making a donation to support our efforts.
Contact Us
We’d love to chat with you - send us a message through our contact form or message us on Twitter or Discord.