
Elara Aerospace

Aerospace Engineering
Industry
37 Employees
Company Size
2024
Customer since
Munich, Germany
Headquarters
Tobias Jäger is COO at Elara Aerospace. We spoke to him about engineering in the aerospace sector. The main focus is on the development of rocket engines and the role that powerful GPU servers play in this.

Yes, thank you very much for the invitation. Elara Aerospace has set itself the goal of being the first student initiative in the world to launch a liquid-powered rocket into space. And in the process, we are also building the world's most powerful rocket engine powered by electric turbopumps. We do the whole thing in-house, doing our own development, which in means using our brainpower and your servers.

There are three important points for us. One is that it doesn't run on Linux, but rather on Windows. The second is that your GPUs are all Nvidia-based. We need them for our simulation programs, which only run on Nvidia GPUs. And the third thing we think is very good is the control terminal. In other words, how we can monitor the server's status and then send a ticket directly to support if we have problems or questions.


Our focus is of course on research, but with rocket construction, we are, of course concerned about security. Therefore, it is of course relevant and it is important and also logical that the data is securely stored in Germany. And you rely on Hetzner as your hosting provider?


Hetzner gives us the power and scalability we need for space engineering at the highest level.

We use two products. First, the GPU server. This is the GEX44, which we use for our thermal and fluid simulations. And then we use a CPU server from the Server Auction. It is available for members of us who either don't have such powerful computers themselves or use Mac products and have to run our simulations or applications on Windows. They can then log in there.

We have someone from our team, Linus from the software team, who had already used Hetzner as a customer before and he recommended the service to us.


What I learned here today during the tour is that our philosophies are very much in line. I have learned that you also like to operate independently, and try to do as many things as possible in-house to increase reliability. And that's the way we also like to work. You can't always rely on external partners. If you are independent and have all the skills in-house, you can provide a great product, and it's secure.

Hetzner gives us the power and scalability we need for space engineering at the highest level. And, for us, without us needing to compromise on anything.


Elara Aerospace is growing. When we first met, there were still five of us. Now thereare almost 40 of us. This means that a lot has happened, especially in tech development. Now we're working on practical tests. This is only possible with water tests, where the pressure loss is measured through our cooling channels and in injector units. And then there's my personal highlight, which is the actual engine test. It's the first big component where there isreal power behind it, where you can also break the first world record. By the time we get there, we definitely will have come a long way.

Thank you.