The WARR rocketry department is currently developing a cryogenic rocket as part of the STERN program by the German Aerospace Center DLR. Furthermore, the Institute of Astronautics as well as the Chair of Turbomachinery and Flight Propulsion at Technical University Munich are supporting the project.

The intended apogee of 25km and a speed over Mach 1 shall be reached using liquid oxygen and solid HTPB in a hybrid propulsion system which makes the rocket one of a kind in its thrust class in Europe.

Starting in 2013, the project could record great progress. The preliminary design review was passed and the team went on to successfully operate the demonstrator engine Hy800 in 2014, allowing us to make first experiences with liquid oxygen. The subsystems of the rocket have been developed further continuously until the subscale engine HYPER-LOX was built and tested to optimize the design of the fullscale engines.

In parallel to the subscale engine the team put the self-developed oxygen liquefier into action which allows us to produce and store up to 60 liters of liquid oxygen. This provides enough oxygen for all test engines and to fuel the fullscale rocket for the launch.

Multiple system tests allowed us to compare calculated results with real test data where we could expand our knowledge especially with cryogenic processes.

The Critical Design Review (CDR) was passed successfully in late 2016 and marked the last milestone before final testing and production of the rocket.


Join the team

Do you have a passion for space technology? Would you like to launch a rocket and break records?
Our team is constantly looking for new ambitious students in engineering and other disciplines like business and marketing.
You will find everything you need at WARR: advanced space technology, earsplitting engines and most importantly a great team with great events like barbecue evenings, Munich´s Oktoberfest or Christmas market visits.
Students in higher semesters are warmly welcomed as well.

Write a short message to This email address is being protected from spambots. You need JavaScript enabled to view it. and we will contact you.





DLR Stern Program

Esrange Launch Site


Contact us

General questions 

Matthias Bode
Project supervisor

WARR Social