Testing the Hybrid Jet Engine - Update 3.0 

I'm constantly blown away by the quality of the videos you guys have been making. So glad I stumbled onto your channel before it blows up. I can't think of a more deserving group of content creators.

Beautiful clean design. I had never considered you could use alternately rotating fans rather than stators in a jet engine. Really cool.

Keep going with these in-depth videos! we need more of this on RU-vid.

The best part was showing the fire on the ground, then the slow pan to the fire extinguisher.

next month: "so I built my own wind tunnel..."

Certainly one of my top 3 best reasons to spend time on RU-vid!

You make this world a better place to be I feel so lucky, and grateful to have stumbled across your channel, your curiosity and willingness to jump in with both feet and try something new without fear is inspiring. Not many have the courage to be authentic, for me it’s not just all the technical stuff it’s that your love of it shines through and that makes all the different in the world! Never stop doing YOU! Love it thank you.

Simply thrilling. The depth and variation of your content is beyond compare. Amazing work all around. The quality of your videos is stunning. You are a terrific educator. Thank you.

The sound this jet engine makes is truly fascinating. I wish I had more neighbors like you. Great video as always and thanks.

This is seriously impressive work, I enjoy watching this develop

You are so amazingly versatile with all your varied projects- great stuff.

I'm so happy I stumbled across this channel. I absolutely love your clear and precise explanations. Your broad knowledge of engineering and physics is phenomenal. Thanks very much for sharing your knowledge using such high quality production. Subscribed for life.

Really amazing project, this channel keeps getting better

If I were your neighbor I'd walk over just to hang out and watch/help!

The lightbulb went off in my head when you described the regenerative braking on the turbo fan to pull heat out of the incoming air.. Awesome.

I think I've learned more watching your videos than I did in acquiring my A&P licence and associates degree in aviation maintenance technology. Great job! Keep 'em coming.

Worlds most overly complicated shop heater.... subscribed.

Clear precise information just what my brain needs, very Grateful plan to pay in future . Thank you Tech ingredients.

I would love to bring my CNC mill and 26 yrs of Toolmaking experience for a shot at being your assistant. Thanks for the work you put in to every project you do. As you know, Something worth doing is worth doing right! Very impressive and professional.

Proper engineering. Excellent work. Had to leave this video for Sunday so I get enough free time to properly absorb the content.

That is the biggest, baddest ESC I've seen in my life holy shit

Who is this guy?! He is a super engineer/certified genius. Can you please do a video where he talks about his background in his early life/education/ and then career?

Just found your channel and I am blown away. I have been looking for a channel like this that has concentrated on this very area. Not to mention his son being able to be part of this build, can't ask for a better way to bond I subscribed!

I wish I had you as a neighbor. I'd be over all the time, learning and helping in any way I could. Sounds like your neighbor needs to relax or take up a hobby.

Quality content as usual!!

Awesome series guys! As always, exceptional quality of video, left feild thinking, well excecuted, and a damn fine peice of kit. Love it! If i can contribute anything to people watching, those marine "switches" are actually isolators. Can handle 200A easily, but *Can Not* switch it. Only switch them at no load. They arc internally, damaging the contacts, make a high ohm connection, getting them hot, n they melt (after a 100-odd throws). No problem here, the ESC does the switching, but anyone who needs to switch 100-odd amps, these wont cut it. The expensive switches are pricy for a reason, and worth it. We used to use them, power switch for 10x 20a 12v-5v dc-dc converters. The inrush current destroyed the contacts, an eventually melted every single one. They look good, but an industrial dc rated switch is far more reliable. Again i stress, no problem here tho, just sharing something i learnt the hard way :-D

one of the coolest videos I've ever seen on youtube, I loved this, so happy I found your channel.

I rarely comment on a video, but DAMN, it is hard not to comment on your ideas and the way you apply them. It just blows my mind. I wish you the best, and please keep up the good work :)

I would absolutely love it if you was my neighbour, your experiments are fascinating and cool as hell.

14:16 I like how you said everything that needed to be said there with the camera.

At first I did not beleive my eyes! Very intersting and extraordinary explanations on how things work without the usual "secret ways" that I got from ingeneers when I asked questions them. Thank You for the good work.

Thanks for all the awesome content. You guys always produce immensely informative videos. Techingredients is a big part of my technical content intake.

Just a thought, but you might want to relocate your fire supression equipment further away from the spot where a fire is most likely. It would suck to be standing there with your hands in your pockets because your fire extinguisher is sitting at the center of a flaming methanol puddle!

What if instead of using water to cool the hot end you used the fuel? It might make burning the less volatile fuels easier.

As usual, excellent camerawork, in a very interesting video. Keep 'em coming!

The production quality in this vid is amazing! Good luck and looking forward to more content!

Keep it up! Really inspiring!

Noise, what noise? I would love to have a neighbor making this kind of noise! I would probably help him make more.

I was watching the whole video with a smile on my face! :-) You guys are just awesome!!!

Why have i never seen this channel before ?!! Famtastic work

You need to vaporize the after burner fuel by running tube of copper around the hot part and semi vaporize it and then inject it

Some thoughts on the design: When considering the use of such a hybrid engine in a R/C aircraft, the design has some serious problems, most of which will result in a rather heavy design. First of all the water cooling: additional fluid, additional pump(s) and an andditional jacket are all heavy Secondly, the massive (and therefore also heavy) flame tube, which seems to be required to achieve a good evaporation of the fuel My suggestion to get rid of these items: using a combustor liner, in which part of the air is used to burn it directly with the fuel, while the remainder is added through additional holes in the sidewall of the combustor liner, so a jacket of cool air is generated, protecting the combustor liner from direct exposure to the flame. In this way, several layers of metal can be skipped, the combustor liner can be made out of thin sheet metal, since it does not require to have a big heat capacity. Here is an example of combustor liners: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-xycmedGUdB4.html To compensate for the lack of effective evaporation area, a beefier fuel pump combined with a more aggressive fuel nozzle, that creates smaller dropplets of fuel, might be the way to go: a fuel pump is required anyway when using liquid hydrocarbons as fuel, so there is no additional part - just a slightly heavier one. The higher energy demand of the heftier pump is still marginal compared to the dual fan arrangement. Talking about the dual fan arrangement: wouldn´t it make sense to decrease the diameter of the tube between the compression stages and maybe even using a secondary EDF with a smaller diameter? Greetings Rage

That is what I was looking forward too! So incredible and such an amazing job you have done with it such beautiful workmanship! Thank you and waiting for this video was well worth it thank you and keep up the hard work!

Congratulations! Very well done. You get those parts together and you can count me in as a customer. I have a few ideas I'd like to explore myself. Very best wishes moving forward.

It worked great when we attached it to the aircraft; only problem was the massive forest fire we created everywhere we flew.... oh, and the 10 km extension cord.

Can't wait to see it's manned maiden flight. :-)

Just want to say that this channel is amazing, thank you for sharing these awesome videos!

Looks like a ton of fun, what a privilege to have the means for this.

I need this guy to do the turbo encabulator bit.

Sir , I really like your design and build. Just want to trow one suggestion in....you may be able to use the fan sections of a used turbo-molecular pump...higher compression at a low price.

Incredible design and quality work. Glad you share it with us.

I love your videos. You're taking all the calculated concepts I learn in school and applying them to real life which is what I'm in school in the first place for. Thank you for the clear and detailed videos.

How do you have the time and money to do all this wonderful work?

How can one channel be so based?

These may just be some of the best engineering based videos I have ever seen. You guys are diy sure but this was not an amateur project by any means. Thanks for the content and congrats on the build.

Seriously, thank you sir. RU-vid needs more legitimate content like this!

Interesting but use the spinning fans from the ram speeds to power a microwave to heat the exhaust to extreme temperatures. Or just use a plasma arc in the exhaust. Make your exhaust temperature go from 2000C to 28,000C and see this thing be actually useful. Think much bigger fans, and much larger restriction for more compression and ultimately more electrical power at speeds for heating the exhaust plasma. When you make it big please get ahold of me.

I like how you told us to convert to metric, then used metric for nearly all of the measurements following that statement hahahaha.

really impressed by the quality of your presentations. thank you.

you never cease to amaze me. you sir are a legend. thank you for all your hard work.

this world is such sad place... if you listen football loud on your tv your neighbor will come to join you, but if you are testing your diy jet engine your neighbor will come to complain... i really really cant understand why people are ignorant and not curious or interested about anything... the huge majority of people are really only NPC...

attach it to your bike.

Awesome! I can think of a couple applications for something like this. Very well done my friend!

Please please please do not stop making videos... Many channels ( which I really do believe your channel will be one of them) explode in views and subs once the word gets out and I think that is right around the corner for you guys! Don't stop!

Please wear ear and eye protection in the future.

ahaha science humor..actually the difference between an atom bomb and hydrogen bomb is like the difference between a bb gun and a bazooka ahha..but for novices..pretty well said.. not too noticable..well done..impressive...how much thrust

I've stumble upon your channel about an hour or so ago .. really love the content and of course I've subscribe !

Inspiring!! A restless mind! Keep bringing us more outstanding knowledge.

I find it funny how you mention it's so loud that even neighbors are complaining, but you fail to ever use the ear-protection you have hanging from your neck. Great video by the way. It's really neat to watch physics in action in this way.

Outstanding work sir , keep up the great work .

so glad I came across this channel! keep up the good work!

you have set a really cool way of compressing the air

I really appreciate the debrief afterwards. I love the low cost maintenance this engine has!

I think it is a success as a test set up. Congratulations!!!

I worked as an engineer at a company that makes military jet engines, this was an awesome display of a jet engine.

Great channel Great content. In the science world, you are a dude. These are the type of projects we are would love to do but for different reasons we are unable. So we get to see them through you.

Fascinating! Reminded me of my youth when I and my brother bought a so-called "jet engine" from an ad in the back of a popular magazine for something like $1.50 and ran it in our backyard scaring the daylights out of our neighbor who lived behind us. I was maybe ten years old, brother was 9, and this was over a half century ago. If I remember correctly, the engine was just a spent CO2 canister with some steel wool or other porous material stuffed inside. You poured gasoline into the thing, closed the nozzle which had a tiny orifice pre-drilled into it, and lit a fire in a small tray that was slung underneath the canister. We suspended the whole apparatus by string under our mother's backyard laundry hanger (we made sure she wasn't around) and this allowed it to spin like a toy airplane in a horizontal loop maybe three feet in diameter under the thrust it generated from the expanding burning fuel. For a few seconds it shot a nice stream of liquid flame out the nozzle, and we thought that was the coolest thing we'd ever seen, but I had to do some fancy talking to assure our neighbor that it was perfectly safe, which of course it wasn't. Also, I'm glad to see that for part of your video at least you were sporting ear protectors, but for most of the loudest tests you didn't wear them! I can't overemphasize the fact that you're gunning for a silent retirement if you don't wear them for these tests. Hobby motors, jet engines (small and large), power tools and even loud music are just a few of the many things that can permanently damage your hearing so it pays to wear hearing protectors or turn down the volume whenever you're operating this equipment.

i haven't been impressed by a piece technology like this in a long time. Super impressive.

Thank you so much for sharing some of your world with us. I love your videos.

Former Crew Chief here. These sounds make me smile!

Fav thing about this man and channel: He is a man with dreams and knowledge on how to reach them. But then he shares with others who may have similar dreams how he reached them 😍

Excellent house burning down - not sure i'll be mounting on a bike anytime soon. very enjoyable video

I thought initially that this was a bit of a gimmick, just something fun and exhilarating for you to mess about with, but in the conclusion you raise some genuinely interesting applications. All the best with this fascinating project. :)

Congratulations, also for the much improved camera handling. Keep on please. Thanks.

Glad to see you've worked out a load of your audio issues. Always record at as many sources as you can, you can always discard the low quality.

How this video has less views than the first I dont know. You would think people want to see it work more than they want to know how it was built. Love the videos. Especially your HVAC type videos. I work HVAC and love the new ideas for more efficient cooling. Keep it up!

You are out of control. In a very good way. I love it.

Thank you for your great time and effort that you put into this project I look forward to your other iterations of the unit as well as doubling the thrust output I support you and whenever I can I shall most definitely build one of my own who knows maybe I'll build a big rc around it xD

I can't decide which one I like best.... you or the Applied Science guy. I love both of you!

I don't care what any neighbor would say - you, Sir, gotta be the coolest dad around! You remind me of my own dad. He was a Civil Engineer and Professor, and I hope your kids appreciate every second they get to spend with you, and all they get to learn from your vast base of knowledge! I miss my dear departed father immensely, and I am so grateful for everything he taught me all the time we got to spend together! As for fuels I would have tried to slightly modify and fit the burner of a Primus MultiFuel III as a flame holder. The Primus MultiFuel III can burn gas, chemically pure gasoline, diesel, kerosene and aviation fuels. It is quite small, and would provide a relatively small amount of back pressure. Liquid fuels in the Primus system are contained in a container that is pressurized by hand pumping. This could of course be pressurized with an electric pump or a small gas cartridge. A lot of R&D has gone into the design of the nozzles in the Primus MultiFuel systems to get the optimum air-fuel mixture. It is small and light weight, and it can sustain very high temperatures, so I would definitely have tried that commercially available system with this hybrid engine to run on various liquid fuels. I have a hunch that would be just the ticket needed to get a great air-fuel mixture with very little back pressure towards the compressor area. Just an idea for any future modifications to increase the trust and fuel efficiency of this magnificent engine. If I may ask; what is your background? You have an eminent knowledge of industrial systems, which leads me to think maybe you are working with R&D or process supervisory capacity in some field of industry, but at the same time you have a great natural talent as a presenter of knowledge, so I'm thinking you might just as well be a professor at a technical college/university? Thanks again for sharing your brilliance, Sir!

Such an awesome channel. A national treasure.

I find it amazing that Frank Witchelalmost 75 years ago pioneered jet engines it does not diminish your accomplishment by any means I love the video

Fantastic work! I hope your neighbour doesn't give you too much trouble. Although his position is kind of understandable with all the madness going on at your place :P Looking forward to the next one!

the ramjet factors of this engine at speed are genius, now your design choices make sense to me.

This is exactly what RU-vid is made for! Excellent work!

Can't wait for more! Good job Sir.

Love all your videos and ideas 😊 Keep sharing your intellectual genius! 🤗

Nice work ! Enjoyed the show... Keep up the good work and I would made some popcorn and watch the show if I was your Niebor..

Thank you for doing and sharing this with so much details! Really cool and interesting

Seriously don't you just love watching that mad scientist type of person that's just got an incredible mind and brain to do incredible things mind boggling to watch this guy excellent video