Alex has built a 4″ hybrid that with a minimal oxidiser load comes out to an N10,000 and with a full load to the mid to upper O range. The launch and ground infrastructure is also worth noting, custom rail with integrated load cell, turbine flow meter and pressure sensor with a ground monitoring station, this is what amateur rocketry is all about, it is good to see people going the extra mile.
His larger rocket is equivalent to an R10,000 and holds 200 lbs (90.7 kg) of oxidiser this will be impressive to see launch!
Video Caption: A student society that builds a record-breaking hybrid rocket engine powerful enough to lift an SUV? Check out the ninth engine test video. Unfortunately, 12 seconds into the burn an engine failure occurred.
Currently, it is believed the failure was caused due to an injector failure. It is hypothesised that the injector overheated due to an instability causing an increase in Oxidiser mass flow, which led to the chamber wall overheating and finally failing. A low and high-frequency oscillation event has been seen in the data and research to minimise these oscillations is being conducted. Our engineers are working hard on a forensic analysis to discover the cause and find a solution.
Due to our thorough safety procedures, no personnel were here harmed, however, one pumpkin was never seen again.
Video Caption: A student society that builds a record-breaking hybrid rocket engine powerful enough to lift an SUV? Check out the eight engine test video where we successfully tested a titanium nozzle insert!
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Abit of a tweet storm from me, but this is one project worth showcasing.
Jonny Hyman has over the past few months been working to develop his own hybrid rocket propulsion system. Not only has he been developing the engine but also all the necessary ground support equipment required which is just as impressive as the engine itself.
Jonny has produced an impressive engine monitoring system, from the GUI to the camera system set up in his backyard. The engine is expected to produce 40N of thrust, able to be throttled and will have fast restart times.
You can follow Jonny on Twitter (most updates here) or check out his website and Instagram pages.
Video Caption: A student society that builds a record-breaking engine powerful enough to lift an SUV? Check out the seventh engine test video where we successfully tested a 3D printed titanium nozzle!
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