First hot fire testing of the 75kN HyImpulse hybrid rocket motor

At midday of Tuesday 15 September, the first firing of the HyImpulse 75kN hybrid rocket motor was a full success! It was performed at the world class DLR Lampoldshausen testing facility. This is the biggest hybrid rocket motor ever built and tested in Europe.
This marks an important milestone in accomplishing our plan for a suborbital flight in early 2021 and the first flight of the three stage HyImpulse launcher SL1 by the end of 2022.
HyImpulse is the first German Mini -Launcher startup to have its full-size flight weight motor developed, built and hot fire tested on a test bench. With the NewSpace Launch sector heating up, this important milestone immensely advances our international position in this area.
The test confirms that the rocket propellants based on our proprietary Paraffin /LOX formulation achieve the same high performance as liquid hydrocarbon-based fuels with a much-simplified propulsion system and at a fraction of the cost.
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This series of test firings is funded by the HyImpulse HyTec project from the EU SME Phase II in the framework of Horizon 2020.

[@_aullik]

Always nice to have some interesting tech out of Germany.

[@jadencm4862]

Can you guys help me strap one of those to my Honda Civic?

[@TomatoSaucy]

Too weal ngl needs more UMPHH

[@bashkillszombies]

Every time I see Jaden he's asking about strap-ons. It's weird.

[@CRVcomponents]

That made a sound btw great shot of the nozzle!!! keep it up

[@Handelsbilanzdefizit]

Nice, but can you gimbel an hybrid engine? Or do you need thrust vanes?

[@not_a_therapist]

Not in a normal sense, but even the SRBs on the space shuttle had thrust vectoring. The nozzle itself shifts, and to keep exhaust from leaking, it had a series of thin metal rings that slid past each other, while keeping the gasses in

[@dirkweindel9492]

Yes! Läuft!

[@StreuB1]

Fuel grain sloughing?

[@llawliet3355]

Good, but where's the noozzle?

[@fishing1335]

Beautiful

[@goodgremlinmedia2757]

Interesting use of a COPV

[@johndavid360]

Woahhhh! Is that like carbon fiber casing?

[@skyzip4k171]

Underexpanded?

[@litmusaero2645]

That’s insane! I’ve only managed 39kn on a good day 😅 I’m using Nitrous and pariffin if anyone is interested

[@robbiejames1540]

Very interested! Do you have any vids of it?

[@FirstLast-tx3yj]

Thats crazy could you give parrafin tube size and nitrous consumption per second??

[@MrRossi1805]

Some more explanations?

[@t2factor18]

why's it so quiet?

[@obsidianfury3844]

It's because the water is used as a sound supression method. The same method is used to supress the sound made by big rockets also.

[@t2factor18]

@@obsidianfury3844 I know, it was a joke

[@f-22enthusiast39]

@@t2factor18 lol

[@dylanmccallister1888]

Wax power!

[@declan9876]

nice

[@matholthe]

Hypergolic fuel?

[@DJ_Level_3]

Nope, it's a hybrid rocket. Basically an SRB except that the oxidizer is pumped in so it can be shut off, unlike a normal SRB where the fuel and oxidizer are premixed and cannot be turned off.

[@matholthe]

@@DJ_Level_3 wow thats kinda neat :D never heard of a hybrid rocket before

[@CANAL-APEM]

Uaalll

[@Muss_._]

hi.I m from Malaysia, i was watch more your video.I like all. i think make one rocket,but i don't how to make motor rocket. Can u teach me how to make engine rocket like u? which i can do at home. Please🥺

[@chrispoirier384]

It’s too small, build a bigger one. (In the USA that would be a very funny statement) amazing work.

[@soultrick7474]

fuel ritch, looks like losing some efficiency

[@tj_1260]

yoyo