![](https://www.small-launcher.eu/wp-content/uploads/DLR_Stuttgart_2018_SMILE_2-570x350.jpg)
In hot firing tests in September 2018, a research team led by DLR subjected a reusable rocket engine to an initial test run. It successfully completed a total of 18 tests at the high-pressure test bench of Spanish project partner PLD Space, with a firing time of up to 45 […]