S
Sascha Deri
4
APPEARANCES
3
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Oct 20, 2026
The Economics of Building Rocket Engines
11:22
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8:40Sascha DeriGUEST
Yeah, really good example of something exceptionally energetic and very capable of exploding.

Justin StarbirdHOST
And so one thing you didn't touch on, though, was Once you've actually created the safety mechanisms and what you need to do versus not need to do, and there is a significant difference there, what does it take to evaluate the data that comes out of a test so that you can then apply it to the next test and eventually the launch?
bluShift Aerospace's Sascha Deri on Hybrid Rockets and America's Rocket Motor Shortage
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10:35Sascha DeriGUEST
So I think the reason why solid rocket motor people think liquids are wrong is because of the lack of simplicity.
S
10:46Sascha DeriGUEST
You have your fuel and oxidizer mixed up into a dried, it's called a fuel grain, but core liquid.
High-Performance Rocket Propulsion Meets Climate Sustainability
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5:37Sascha DeriGUEST
So I should just back up for one moment, just say that, you know, you know, I've always been, so my background is in early days, physics and electrical engineering.
S
5:48Sascha DeriGUEST
And so there's always been this curiosity about how the universe works and then sort of the application of really the applications of physics, which is engineering.
S
5:57Sascha DeriGUEST
And I've always wanted to find, you know, that sort of intersection between how technology can benefit humanity and the universe.
S
6:10Sascha DeriGUEST
And You know, early days, you know, I started a company up in in ninety nine in renewable energy.
10 MINS LATER
Inside the July Hot-Fire Test
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3:20Sascha DeriGUEST
Yeah, so this test we've been preparing for for a long time, and we've been working, doing tons of modeling, tons of tweaks and changes to the internals of the engine.
S
3:40Sascha DeriGUEST
That cylinder looks very... vanilla you know it's just this round cylinder that is a hybrid rocket engine uh but we made a lot of changes in there things unfortunately I can't I can't talk about but um There was a whole lot of different changes made in there.
S
3:55Sascha DeriGUEST
And the outcome we were expecting to see was one where we were looking to snuff out a certain type of instability or actually three types of instabilities and increase the efficiency of the burn further.
8 MINS LATER