Aeronautical Engineering Projects
See something you want to know more about, reach out to Bremer!
Rocketry
It started as a hobby, well now its gotten to be a bit more than that.
Highlight: Self Built Liquid Rocket Engine
I was able to lead one, if not the first, high school teams to build, fire, and then subsequently launch a high power liquid rocket engine, that we called Brojave Sphinx, which is an iteration of Half Cat Rocketry's design, serial number [SN06]. With the exception of the injector and exit nozzle, everything was machined or assembled by myself in my garage. We static fired the motor in Arizona, and then launched it at the friend's of amateur rocketry launch site in California. The motor I built lives on, and is still actively used by the club today. Read the documentation below, or watch the videos below, the sound of the engine is awesome!
My Hypersonics Research info is on my Mechanical Engineering Page!

The Launch
The Static Fire

Documentation
Not working? Download the documentation here.
Want to see how this rocket was machined? Take a look at my Manufacturing Engineering Projects Page!
















High Power Rocketry
Yeah you need a license for these shenanigans.


High Power Rocketry
High Power Rocketry is a classification of rocketry that you need a license from one of the National Rocketry Bodies (Tripoli or NAR) in order to purchase the larger motors for high power rocketry. These don't get launched in a park, they're at least 16x more powerful than what you should be reasonably launching there. Bremer currently holds his Level 2 High Power Rocketry Certification, and is working towards the final level, Level 3 by the end of 2026. The large red rocket on this page is over 12 feet tall and a foot in diameter, and was launched in 2024. During high school as the rocketry club president, Bremer oversaw the building, launching, and recovery of over 30 Level 1 certification flights. I've attended a multitude of national launches such as LDRS and BALLS. View a gallery of my rocketry experience below.
























Website Info
Created by Bremer Kaprosy on 08/04/21
Last Updated 02/04/2026
bremiere v3 - click to view old bremiere

