Getting ready to put on a good show at AIRFest 31!

Flew all the way to Wichita, Kansas... found BOB FM! 97.1

Static fire complete out at the Rocket Pasture! Next up will be a launch tomorrow.

Low clouds all day prevented us from launching. We'll try again tomorrow.

Shiro Sphinx is up and away at the Rocket Pasture!

Safely recovered! 9,634 feet

Great liftoff photos by Bean!

The first Mojave Sphinx launch in Europe! SN 11 Nitrocat made a flawless flight to 1,785m (5,856 ft). youtu.be/GztVz2bNUjE

Effective January 1, 2026, the Tripoli Rocketry Association will allow liquid rocket motors at launches! Years of hard work, demonstration, and collaboration have culminated in this monumental achievement. We are proud to have been a part of the journey. tripoli.org/content.aspx?p…

Three teams, three Mojave Sphinxes, three perfect launches in one rack!

SN 17 Eureka Sphinx has set a Half Cat Rocketry altitude record: 11,091 feet!

SN 17 taking flight

Composite photo of all three Mojave Sphinx launches taking off yesterday. Colorado School of Mines, UCSB Gaucho Rocket Project, and our own.

A few weeks ago we did three Mojave Sphinx launches, which put us at 96 total liquid rocket firings since our first test. Tomorrow we'll round that out to 100 in under five years, including the debut of our newest design, Bobtail (pictured on the test stand)

Four tests completed us today, concluding with a Garfield Gorange E85 firing by Shiro Sphinx! That puts us at 100 firings, 12/15/2020 to 11/29/2025.

Photos from the four tests we did yesterday

It's Half Cat Day, marking five years since we conducted our first test of a liquid rocket motor! Here's the longer message we posted to our discord server - so much has happened since then, and we couldn't have done it without the excitement and interest from everyone out there.

This Saturday, we conducted three more tests of Bobtail, our in-development all-COTS liquid rocket. We found problems and solved problems, evolving the design toward better usability and performance.

Last month, Patrick Morrison gave an excellent talk about the basics of amateur liquid rocketry. Give it a watch here: youtu.be/Fi6vmynh4rM?fe…

Two good tests on Bobtail so far today, and currently recycling for a third. The new ox-centered pintle injector is working relatively well