HyEnD – HyRES Hybrid Rocket Engine Test 16 & 17

Video Caption: Test 16 of our 10000 N Hybrid Rocket Engine “HyRES”. This was done with the configuration and conditions during our launch in October 2015. As we expected from theory, the combustion is clearly unstable under these conditions and we modified these conditions for the next test 17, which shows excellently stable behavior.

HyEnD – Hybrid Engine Development: http://www.hybrid-engine-development.de/

From the teams Facebook page:
A further important step of our analyses and tests was, to get to the bottom of the launch failure last year. With test 16, as in the video below, we could show, that a too low nitrous oxide temperature at launch was responsible for instable combustion in the engine. This increase thermal and mechanical loads and lead to the failure of the engine.The configuration and conditions of test 16 represented the same as the launch last year. Compared to test 17 the differences in stability can be recognized easily.

Test 17

Video Caption: Slightly improved version of our 10000 N Hybrid Rocket Engine “HyRES”. Compared to last year, we increased the combustion efficiency even further and also the combustion is more stable.

Test 17 with 15 seconds burn time at full thrust. Propellants are Nitrous oxide and paraffin fuel.

Built with funding from the German STERN Program from the DLR. Test site M11.5 provided from DLR Lampoldshausen. To be launched on the sounding rocket HEROS 2 from Esrange, Sweden.

HyEnD – Hybrid Engine Development: http://www.hybrid-engine-development.de/

From the teams Facebook page:
The preparation for our second launch campaign are in progress. Four more hot fire tests with our flight engine were conducted until now. The combustion could be improved to be more stable and the combustion efficiency was further increased. With this we ensure a stable flight and use the full power of our propellant combination. The following video shows our Test 17 for 15 seconds burning time. As visible in the pressure graph, the combustion process is very stable.

Visit the team’s website to learn more, http://www.hybrid-engine-development.de/

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