RESOURCES
Getting Started
Whether you’re new to liquid motors or looking to learn more about each subsystem, here you’ll find information on the parts that go into a Half Cat style propulsion system.
Simulation
HCR publishes ready-to-use tools for designing amateur rocket motors and their subcomponents.
Technology
These articles cover topics of interest for liquid bipropellant rockets. They explain the concepts and relevant mathematics for amateur technologies with a focus on the practical implementation of engineering principles.
Components
These are some of the standard parts and subassemblies from HCR's projects which are proven and ready to be employed in a rocket build. Each guidebook includes detail about one or multiple specific component designs along with manufacturing and assembly information.
Ground Support Equipment
GSE is just as important to the operation of a rocket as the motor itself. HCR has developed a number of simple systems for reliably controlling, testing, and launching liquid rockets.
Simulation
Half Cat Rocketry does not have the time or ability to pursue every interesting idea. Therefore, these are written into short technical notes that can serve as inspiration for others to investigate and develop.