Jun 28, 2023The video was captured with GoPro HERO 8 action cameras in 4K with 60fps located in the avionics section filming sidewards. The rocket features four of these cameras so that a 360° panorama view is possible. Stay tuned for the results of the post-flight analysis in the coming weeks.
A few weeks ago, we manufactured four fuel grains to evaluate a potential new solid propellant. These grains are based on the propellant "TM-78," developed by chemist Dr. Siegfried Oeckl, and have been improved in terms of pourability, safety, and regression for larger sustainer engines. Notable modifications include a higher binder ratio, larger sodium nitrate particle size, and the addition of a flexibilizer to prevent propellant cracking. Each grain is composed of 500 grams of the new TM-78HP propellant and will be tested in a small characterization motor at the MPA (Materials Testing Institute) of the University of Stuttgart. Stay tuned for part 2🔥
This small solid rocket motor is used to characterize new solid propellants. Using the measured pressure of multiple burns with different throat sizes, one can determine the a and n parameters and thus the regression rate.The assembly starts by mounting the nozzle flange on the casing. Afterwards the nozzle assembly and propellant grain are inserted. Next, the pertinax bulkhead and ignitor can be placed, special attention is given to the cable as it has to be shorted at all times. Lastly the assembly is finished by screwing on the bulkhead.This assembly, except for the fuel grain can be reused at least two times, some parts more than 10 times. This allows for quick and easy testing of multiple grains.
This solid rocket motor was fired to evaluate a newly developed solid fuel at MPA University of Stuttgart. This is one of four tests performed in April. As it is only for fuel evaluation, it doesn't have a proper diverging section, therefore resulting in a short and stubby exhaust.
Dec 9, 2024In 2024, HyEnD achieved a major milestone by successfully testing our 550N battleship engine! Fueled by nitrous oxide and ethanol, the engine generates approximately 550N of thrust. This test focused on validating the ignition sequence, paving the way for larger and longer-duration tests in the future.We would like to thank our supporters and sponsors - this success wouldn’t have been possible without you!!
