Compass Hybrid Rocket - Launch

On Friday 25th June 2021, HyEnD has successfully launched its subscale demonstator rocket Compass for the DLR STERN project. The launch took place at the Truppenuebungsplatz (military training area) Heuberg. Compass was able to reach an altitude of more than 3200 m / 10,000 ft above ground and an initial acceleration of more than 6.5 g. During ascent, all systems performed nominally. Drogue and main parachutes were ejected- however, the main parachute was not able to unfold, and the rocket landed with a descent rate of about 20 m/s. This resulted in some damage to structural components and the fluid system - but we are happy to inform you that our mascot Major Ted is well and seems to have enjoyed the ride! We want to thank all supporters that have made this launch possible - stay tuned for more details soon!

[@skynet128]

I really like the sound of the rocket going off and the cheering after that. :) And those pictures above the clouds? Just breathtaking beautiful! I'm a little jealous of Major Ted now.

[@duncan7610]

You guys are amazing, incredible works, keep it up 👍

[@Pa4lakVRT]

Hey bro, what is the diameter and meter of the rocket tube, excluding the rocket funnel?

[@sanchezroldansergioalejand3113]

Awesome, how are you controlling the oxidizer flow?

[@androbolaareospace9602]

Nice

[@-NOCAP-]

Is this the sign to launch satellites without a rocket? Only ask cuz I was literally just watching something earlier where somebody is working on a similar project in the US before the funding got cut and they moved to Iraq with it.

[@conanmulraine3612]

How many kg of oxidiser did you use?

[@HybridEngineDevelopment]

About 1.8kg since the maximum altitude was restricted. The total propellant mass (2.4kg) includes residual fuel remaining after operation of the engine.

[@conanmulraine3612]

So 1.8kg of oxidiser and propellant combined?

[@playtex7362]

rockets be like.. skkkkrrt