I Built a Shockwave Jet Engine

Sorry for this but there's a scam going on my comment section. I only use the email integza@gmail.com/ to contact the winners of the printers. Be careful! Do not transfer money to anyone, the printers are 100% free.

As someone who spent 15 years in the reserves around jet engines, Integza needs to add ear protection to his personal protective equipment. I wasn't careful enough when I was his age, and now have the hearing loss to prove it. Nowadays you can get electronic ear protection that actually lets you hear quieter sounds than normal and only blocks sounds loud enough to damage your ears.

Hang on a minute, you're actually doing more backyard ballistics than I do!

thank you for being one of the only YouTubers I can't understand on 2x speed ❤😂 you don't purposely extend your videos by talking slow and I love it bravo sir I applaud you

You could create multiple combustion cylinders that converge into one exhaust pipe, something that looks similar to a Rolls Royce Derwent jet engine. I would combust them in rotation of a clock that way you will have higher pulse rates of combustion kinda like a radial piston engine.

Instead of electrical valves which would operate at a fixed frequency, you can try mechanical pin-activated valves that are activated when the pressure in the chamber is minimal. Thus, the valves would activate at the exact rate to resonate with the detonation cycles, like in an IC engine. Edit: Tomatoes are disgusting!

Technically, this is a rocket engine, since it uses it's own oxidizer. Even cooler than a jet engine!

If you are keeping the older builds, a video I'd love to see would be how they all compare to eachother in a proper and recorded testing session

You could double your gas valve speed by putting two supply valves into the combustion chamber and set up your Arduino code to do an alternating trigger between the two valves.

Impressive tomato blaster, you should load it with a cherry tomato

You have gained a ton of knowledge, tools, and expertise over the course of these videos. A theme for a future video that I would love, would be to see you tackle some of your earlier failures with with your new knowledge, to see if you can get things working!

RDE development is fascinating, im excited beyond measure that you're making one

After seeing you try many many other engines, I feel like a video on a radial engine is deserved!

6:14 you made a SCIENTIFIC MASS ACCELERATOR ... congratulations on your EDUCATIONAL achievement!

For the valves I would go for LPG injectors used in car engine LPG conversions. They should be able to open with required frequency still being relatively cheap.

The Shchelkin spiral spring was interesting how it improved the effect. I once tried a tall, curvy or ribbed brass candle holder one time where the "exhaust end" was very wide with not hardly any confinement yet it made a good bang just being misted with methanol and lit from the open narrow end with a Bic lighter. If you try that same trumpet shape with an aluminum baseball bat with the the ends cut off the flame front becomes terribly slow and won't produce a bang. But this narrow wide narrow repeating channel shape accelerates the combustion quite suddenly. If you turn up the volume you can get an idea of the sound from this video entitled Candlestick Holder with Methanol, maybe of interest and only just as an aside or tidbit.

Great job on wearing safety goggles! The next step would be to wear ear protection because bigger explosions == bigger noises.

I love that you take all these technologies that would seem impossible to do in your house, then.... you do them in your house lol. You inspire the shit out of me man!

Video Suggestion: Adding some sort of a nozzle to this would be interesting. The pressure is not irrelevant in jet or rocket engines. it is manipulated through forced expansion to increase velocity which does create huge amounts of thrust. perhaps a little known fact: the pressure at the end of a rocket nozzle is very close to zero. Ideally it would be zero but there are issues with being close and creating negative pressure that cause the bell to resonate and explode.

I wonder if the exhaust can be funneled through a nozzle to further increase the momentum. The mushroom plume does not look particularly efficient.