After we have successfully conducted our first tests of HyFIVE-2 last week, here are some stunning photos we took. HyFIVE-2 is the 800N version of our test engine which will later – in combination with a lightweight casing – power our demonstrator rocket. We have tested some injector designs to improve fuel regression, thrust and efficiency, reaching a combustion chamber pressure of more than 25 bar. The new ablative nozzle made of carbon phenolic has also proven its ability to withstand the high temperatures in our engine. Since the first tests were very promising, we are looking forward to the next tests in the following weeks to improve the engine even further.Watch our testvideo here: