Video Caption: First test firings of the FAR bi-propellant motor under construction.
This video was recently posted to Twitter, and it is definitely worth sharing.
RPA (Rocket Propulsion Analysis) is the tool to own for liquid fuelled rocket engine design.
Although, having been around for a while, downloading the latest update I thought it may make a good post to talk about for those who have never come across it.
Basically, RPA allows you to design your liquid rocket engine from the ground up, carrying out performance analysis, chamber sizing, chamber cooling analysis to name a few of the features.
It is very easy to use and allows quick design and iteration of your rocket engine and can also export a .dxf file of the inner engine geometry for further CAD design.
It can be downloaded as a trial in the lite edition but I would highly recommend buying a full version, it will be an investment you would not regret.
The student team, SDSU Rocket Project, have been out testing their Galactic Aztec rocket this past weekend at the FAR site in Mojave. With a new LR101 rocket engine implemented in a gimbal system, the team pulled off a successful test of this combination.
Looking forward to seeing this rocket fly!
Check out the fiery goodness below!
Video Caption: BPM-5 engine test day
the 4th of February 2017
As something new, we used our pressurisation system actively by changing the engine chamber pressure along the way. We tried to keep the O/F ratio constant and change the feed pressure so the chamber pressure would increase.
We would then be able to map the O/F ratio and chamber pressure with just a few tests.
by Copenhagen Suborbitals