Damn, that's one hell of a project. Even the precision needed to balance all the parts so it doesn't shake itself apart at 50krpm is insane, mush less the actual design.
@@GamersTrashTalk Indeed. Now, a pulsejet engine is a simple enough thing to get running, but a turbojet engine is not. At least one that runs under it's own power and doesn't need a constant compressed air supply. Personally, it's on my list of projects to do in my lifetime, but if I will achieve it or not is another story.
@@theLuigiFan0007Productions You never know until you try! If you really wanna do it, go for it! That would be awesome, and even more if you make it work :)
Bro, he used press to bend things in place, I'm absolutely speechless and horrified at work some humans are capable. Now I just need to befriend him to help me create a hybrid EDF jet or EDF with burners
This was thoroughly enjoyed on my end, I can only imagine the smiles its giving you in person! Time to install a scale-sized fuel truck along side, eh?
I think he needs to put a bit more work into the nozzle design, a properly proportioned convergent-divergent nozzle, though figuring out what all the dimensions should be would be challenging. I don't know if 1 bar back pressure would be enough to produce supersonic exhaust though.
Shock cones, they are called Shock Cones, the nozzle should diverge when the afterburner kicks in to retain the proper flow and pressure you run the risk of a compressor stall if the flow is interrupted by excessive nozzle pressure.
@@quillmaurer6563 not so challenging. the main principle is that the nozzle should converge until so called critical section (narrovest part). The sectional area of it should make speed of air through it equal to 330 m/s (1 mach). Then nozzle should diverge as much as possible but not allowing the flow to detach itself from the walls of the nozzle (i'm mig29 technitian)
You did it, well done! The first RUclips video of a self-made; engine, variable thrust nozzle, and afterburner. Definitely the winner of the triple crown for online jet engine design and build! The only challenge left is to design and build a Turbofan, no youtube video appears to have achieved that!
hi, the afterburner must be engaged when the RPM if about 96% and the EGT reach more than 650°C the afterburnerr is a plus power for a engine full throttle.... and your power with afterburner is perfect... you have a 15 kg and with afterburner you reach 20kg... the normal power in the engines with afterburner is about 50% more than without aferburner so 5 kg more is a beautifull power... im happy for you... your work is realy perfect!!! i think, maybe you need extend the afterburner tube some centimeters..... because i see the flame too orange and inyect fuel with less pressure and more qtty .. you are to some steps from the blue diamonds.. when you can see the diamonds, you reach the match = 1 in the throat nozzle
Convergent Divergent nozzle is what you need that will dramatically increase your gas velocity making more thrust. I can't tell but just squeeze down the nozzle will increase gases but look like a nozzle put around that nozzle so it can pull air around it will increase gas velocity. Look up j79 turbojet nozzles and you will see..👍 Great work brother
Amazing to see how much work has gone into this and the awesome results! Maybe in the future we will see you build another in the future to use on a model or a small plane or even a car?
I bought a torn down engine from a bell ranger helicopter prolly like 2008 and my buddy who was a b2 engine mechanic helped me assemble and set it up… we got it together but didn’t have the electronic controls to start it properly… I snagged it from a college aviation surplus sale for $450 and sold it to a hobbyist for $7500, i split the money with my friend but we never did get to see it run… I was really excited about it… it was nearly this big.
Dude, that is fully, totally awesome. The noise level must be deafening. You should choreograph the afterburner light off with the sound track song “Danger Zone” from Top Gun. How is the fuel consumption at AB light off? You will impress many of the radio control jet jockeys with your AB. Good job. You did your research well. Like to see “To be continued” of next progress with an element of surprise.
That is very impressive, seems very smooth running the cost of the fuel would be the only reason I would want to turn it off, love to see two on a motorbike, sky's the limit :-) what a machine.
It is interesting to see the analogy and similarities in temperatures between the power efficiency of a jet engine and a boosted combustion engine, close enoguh compressor and exhaust temperatures, ok, I know I know is basic thermodyamics for most of you but it is interesting to see.
Now all you need is a tanker to fly up to after take off, and fill the tanks again. When I was over in Vietnam, our F-4E's took off, with full fuel load, they had less than fifteen minutes to find and hook up to a tanker and start the refueling of all the ships, if for any reason they failed, they had just enough to get back to base and land.
This size of engine has a potential to produce 100kg+ of thrust just you need to redesign the combustion chamber or the exhaust vents and install smaller turbine for higher rpm. It’s an excellent engine anyway good job 👍🏼.
Looks like you are experiencing a choke. There are more air generated inside of the afterburner, but the flow speed is not fast enough to let them leave the nozzle to generate thrust. You need an adjustable nozzle that can shrink the area inside but on the back to enlarge the area, to create a Laval nozzle to accelerate to sound speed at the choke and continue to accelerate (now through expansion) afterward to supersonic. Then you will see the Mach diamond that Juha talked about.
just a thought on using a mechanical scale to calculate thrust if the temperature of the scale increases you will throw off the reading as the spring rate will change. If you took this into consideration disregard. Great work love the videos
If you look at the J-79 afterburner, you will see the variable nozzle is not sealed to the afterburner but rather has an annular opening that allows air to be drawn in. That air provides a layer of cooler air between the high temperature exhaust and the nozzle. Your nozzle looks ready to burn up, so you might try that.
Better than I could build by far. That being said, looks like you may need more cooling air. Is there any bypass air from the compressor you could use to cool the augmenter? Most current afterburning turbofans have a perforated inner liner that has bypass air flowing between it and the outer shell, this would give you a boundary layer of cooler air to help keep the augmenter from getting to dangerous tempatures. Another thing to consider is only activate AB when the core is at full spool. This will also help with cooling.
Hi, I have an inner liner with a lot of holes. Its similar to the J 79 engine. It uses exhaust air in a small gap between inner and outer liner, to "cool" the afterburner outer pipe. No worry, the nozzle is made of Inconel. Andy
Very impressive! I would probably install some type of inlet gauze just to make sure no FOD can enter the inlet and damage the engine. I know it will slightly reduce the efficiency, but even a bumble bee or some oversized insect could destabilize and potentially destroy the engine, much like a birdstrike in full-size jet engines.
*_Genial._* 👍🏻😲 Wünsche dir viel Erfolg bei den weiteren Versuchen und dass die Turbine irgendwann mal in einem RC Jet zur Verwendung kommt. Ich werde deine Arbeit von nun an mitverfolgen. 🤗
Danke Dir👍 Ein Einsatz in einem Jet ist leider ausgeschlossen, da ich "Null" auf Gewicht Wert gelegt habe. Das Ding mit Nachbrenner wiegt 18 Kg😉 Meetings, oder Jettreffen kann ich mal besuchen, gibts aber eher selten im Raum Hannover. Mfg Andy
It's a little unfortunate you're not getting 40% extra power with the afterburner. 😢 but I'm sure you'll stick with it. Good Job. I'm looking forward to your next video 👍
that's freaking amazing dude good for you lol good god though I would love just to have a smaller turbine, this is wild; I was looking at just attaching a small turbine to a glider or something, this changes everything. The progression of life itself in our innovative ways of nature is obviously never going to slow down, and still amazes!
Не хенд мейд двигатель (хотя в целом, да ) а скорее здесь главное, то очём я всегда мечтал, примастить к так себе агрегатам.... ФОРСАЖНУЮ КАМЕРУ!!! а вообще зачёт!!!!👍👍👍
Great video, dude. I already have a rough idea of what my plane will look like, but I couldn’t find an engine that fits it. Now I’ll just need some gasoline
OMG.......... You will put that monster on a RC jet fighter later??? Maybe it’s too big to be legal I don’t know the rules about maximum scale size..... That was so so cool, you’ve got a new follower!!! Big salut from France 🇫🇷 VINZ 🙋♂️
Nice! Excellent job on the reheat section. Those mach diamonds were impressive. Something I was thinking, a good improvement on the design would be to tap some bleed air, route it to a manifold, and inject it into a liner in the reheat section to provide some cooling air for the reheat casing, and some film cooling for the internal nozzle plates, if it has an internal/external plate system. Perhaps also adding some external cooling air vents for cooling the external nozzle plates, if equipped with an internal/external system...
Если изучить "диски маха", а потом, на основе их геометрии, создать форсажную камеру; на определённой частоте вращения, камера войдёт в резонанс и тяга увеличится, но вероятно увеличится нагрузка на корпус форсажной камеры. Можно будет регулировать резонансную тягу, в узком диапазоне; это будет значительно экономичный двигатель, с продолжительной работой на форсаже с увеличенной тягой.
That's one hell of a machine to build yourself, respect
Damn, that's one hell of a project. Even the precision needed to balance all the parts so it doesn't shake itself apart at 50krpm is insane, mush less the actual design.
If you told me someone could handbuild a jetengine, id be like, nah bruhh, the precission needed is insane... But this guy, holy smokes!
@@GamersTrashTalk
Indeed. Now, a pulsejet engine is a simple enough thing to get running, but a turbojet engine is not. At least one that runs under it's own power and doesn't need a constant compressed air supply. Personally, it's on my list of projects to do in my lifetime, but if I will achieve it or not is another story.
@@theLuigiFan0007Productions You never know until you try! If you really wanna do it, go for it! That would be awesome, and even more if you make it work :)
@@theLuigiFan0007Productions id say that making a simple sore thumb type turbojet is easier than a pulsejet
Bro, he used press to bend things in place, I'm absolutely speechless and horrified at work some humans are capable. Now I just need to befriend him to help me create a hybrid EDF jet or EDF with burners
I'm sure that windmill started turning a bit faster..
i see it to 😃
The windmill booster
First thing I thought about also!
LOL
People are trying to be green energy miners. A nearby dude burns 10 liters of kerosene per minute. :)
This was thoroughly enjoyed on my end, I can only imagine the smiles its giving you in person! Time to install a scale-sized fuel truck along side, eh?
Just about need a full-size fuel truck for this!
You reach next level when you see row of blue diamonds in flame.
I think he needs to put a bit more work into the nozzle design, a properly proportioned convergent-divergent nozzle, though figuring out what all the dimensions should be would be challenging. I don't know if 1 bar back pressure would be enough to produce supersonic exhaust though.
@@quillmaurer6563 what about them moving turkey feathers that u have?
@@trevoncowen9198 What are you talking about? Doesn't make any sense
Shock cones, they are called Shock Cones, the nozzle should diverge when the afterburner kicks in to retain the proper flow and pressure you run the risk of a compressor stall if the flow is interrupted by excessive nozzle pressure.
@@quillmaurer6563 not so challenging. the main principle is that the nozzle should converge until so called critical section (narrovest part). The sectional area of it should make speed of air through it equal to 330 m/s (1 mach). Then nozzle should diverge as much as possible but not allowing the flow to detach itself from the walls of the nozzle (i'm mig29 technitian)
You did it, well done! The first RUclips video of a self-made; engine, variable thrust nozzle, and afterburner. Definitely the winner of the triple crown for online jet engine design and build!
The only challenge left is to design and build a Turbofan, no youtube video appears to have achieved that!
Hi,
Thank you!👍
A friend of mine built already a working Turbofan.
Check this video😉
ruclips.net/video/3yde9jzF8kI/видео.html
Andy
hi, the afterburner must be engaged when the RPM if about 96% and the EGT reach more than 650°C the afterburnerr is a plus power for a engine full throttle.... and your power with afterburner is perfect... you have a 15 kg and with afterburner you reach 20kg... the normal power in the engines with afterburner is about 50% more than without aferburner so 5 kg more is a beautifull power... im happy for you... your work is realy perfect!!!
i think, maybe you need extend the afterburner tube some centimeters..... because i see the flame too orange and inyect fuel with less pressure and more qtty .. you are to some steps from the blue diamonds.. when you can see the diamonds, you reach the match = 1 in the throat nozzle
Dude this is damn impressive! I hope you can get the efficiency and thrust you are hopping for!
Now this is a man with some free time on his hands! Glad to see he used it wisely. :)
You are a mad legend but big respect for design and build a jet engine
Best looking afterburner combustion I've seen on a homebuilt. Nice work!
Congratulations! This must give you a tremendous sense of accomplishment. And Happy Easter, too!
Hi Stravo,
Thank you, happy Easter ;-)
Andy
Cannot wait to see a full fighter plane of this engine ❤❤🎉
The most beautiful afterburner from a handmade jet engine👍
at least it didn't malfunction.
thrust profile can be worked on :)
great work thus far!
Приветствую всех любителей турбореактивной тяги!
Негоду забаннили! По этому, турбореактивная тяга отменяется
Норм всё, разбанили 😌 турбореактивной тяге быть 🤤
Convergent Divergent nozzle is what you need that will dramatically increase your gas velocity making more thrust. I can't tell but just squeeze down the nozzle will increase gases but look like a nozzle put around that nozzle so it can pull air around it will increase gas velocity. Look up j79 turbojet nozzles and you will see..👍 Great work brother
Übelst beeindruckend! Wahnsinn !!
Amazing to see how much work has gone into this and the awesome results! Maybe in the future we will see you build another in the future to use on a model or a small plane or even a car?
I built a small jet engine too (66mm turbine), but mine didn't have a afterburner.
Nice job, well done! 😀
DAS ist mal ein vernünftiges Hobby!
Leider nicht ganz legal in Deutschland
Also zumindest nicht ohne Genehmigung.
Und die grigt mann sehr schwer
@@ogpsy574 wieso soll man keine Triebwerke selber bauen dürfen
@@sebastians6028 genau das ist die Frage die ich mir auch stelle
@@ogpsy574 ja ok, aber mit welcher Begründung
@@sebastians6028 . Weil das eine Gefahr darstellt wenn man nicjt dafür ausgebildet ist
Hell yeah what a nice piece of modern marvel you made right there..👍 that's so badass.
I love seeing people build stuff like this
I bought a torn down engine from a bell ranger helicopter prolly like 2008 and my buddy who was a b2 engine mechanic helped me assemble and set it up… we got it together but didn’t have the electronic controls to start it properly… I snagged it from a college aviation surplus sale for $450 and sold it to a hobbyist for $7500, i split the money with my friend but we never did get to see it run… I was really excited about it… it was nearly this big.
Eine turbine!
Sieht echt gut aus, so haben wir alle unsere Tüftler Projekte.
Dude, that is fully, totally awesome. The noise level must be deafening.
You should choreograph the afterburner light off with the sound track song
“Danger Zone” from Top Gun. How is the fuel consumption at AB light off?
You will impress many of the radio control jet jockeys with your AB. Good
job. You did your research well. Like to see “To be continued” of next progress
with an element of surprise.
Super!! When you get the blue flame i think the trust will go up 💪... you will manage it...
That is very impressive, seems very smooth running the cost of the fuel would be the only reason I would want to turn it off, love to see two on a motorbike, sky's the limit :-) what a machine.
It is interesting to see the analogy and similarities in temperatures between the power efficiency of a jet engine and a boosted combustion engine, close enoguh compressor and exhaust temperatures, ok, I know I know is basic thermodyamics for most of you but it is interesting to see.
Der Hammer, Hut ab vor allem für deine Ausdauer am Thema dranzubleiben
Please put this on an rc jet airplane if you can! It would look so badass with the afterburner
Now all you need is a tanker to fly up to after take off, and fill the tanks again. When I was over in Vietnam, our F-4E's took off, with full fuel load, they had less than fifteen minutes to find and hook up to a tanker and start the refueling of all the ships, if for any reason they failed, they had just enough to get back to base and land.
Man that's actually awesome you built that. Greetings from Canada!
The afterburner sounds amazing. Just have to figure out a bypass for willing air around it somehow and it’s set to go. Great work! 👍
That nozzle doesn't seem to be enjoying life.
Props for building it!
This size of engine has a potential to produce 100kg+ of thrust just you need to redesign the combustion chamber or the exhaust vents and install smaller turbine for higher rpm. It’s an excellent engine anyway good job 👍🏼.
Great work that shows professionalism. I hope you explain to us the parts of the exhaust in the back.
Looks like you are experiencing a choke. There are more air generated inside of the afterburner, but the flow speed is not fast enough to let them leave the nozzle to generate thrust. You need an adjustable nozzle that can shrink the area inside but on the back to enlarge the area, to create a Laval nozzle to accelerate to sound speed at the choke and continue to accelerate (now through expansion) afterward to supersonic. Then you will see the Mach diamond that Juha talked about.
Definitely, best result with a C/D Nozzle.
just a thought on using a mechanical scale to calculate thrust if the temperature of the scale increases you will throw off the reading as the spring rate will change. If you took this into consideration disregard. Great work love the videos
"Hey bro, what do you do with your spare time?"
"Oh, you know, I like to read, take walks, and *build literal jet engines*"
That is a long antenna on that transmitter! That is some old school schiznit right there!
Dude, that afterburner packs a massive punch & a half. That's friggin' awesome.
=^/,..,^=
thats one way to keep your driveway clear from weeds
It looks to be pretty efficient in its burn, looking at the flame burn image ☺️
Very well done job! Hope to see more of this project in the future too 👌👌👌
You made that! Awesome 👏
If you look at the J-79 afterburner, you will see the variable nozzle is not sealed to the afterburner but rather has an annular opening that allows air to be drawn in. That air provides a layer of cooler air between the high temperature exhaust and the nozzle. Your nozzle looks ready to burn up, so you might try that.
Hi John,
no worry, the nozzle is made of Inconel.
Andy
Better than I could build by far. That being said, looks like you may need more cooling air. Is there any bypass air from the compressor you could use to cool the augmenter? Most current afterburning turbofans have a perforated inner liner that has bypass air flowing between it and the outer shell, this would give you a boundary layer of cooler air to help keep the augmenter from getting to dangerous tempatures. Another thing to consider is only activate AB when the core is at full spool. This will also help with cooling.
Hi,
I have an inner liner with a lot of holes.
Its similar to the J 79 engine.
It uses exhaust air in a small gap between inner and outer liner, to "cool" the afterburner outer pipe.
No worry, the nozzle is made of Inconel.
Andy
That's amazing. You have my respects.
This is very impressive. Keep up the good work!
WOW i see that the afterburner is unstable at first but it gets but alot more stable at the end nice job
Very impressive!
I would probably install some type of inlet gauze just to make sure no FOD can enter the inlet and damage the engine.
I know it will slightly reduce the efficiency, but even a bumble bee or some oversized insect could destabilize and potentially destroy the engine, much like a birdstrike in full-size jet engines.
Very cool, thank you for sharing 😊
Looks bloody hot to me!
I wonder what it is that's so satisfying about the high pitched noise of a jet turbine.
My neighbors would love this!
Big Toy $$$$$ excellent . wow camera work super.👍🇦🇺
Woow du hast echt gut gebaut 👍
@3:25 Blimey that is impressive.. It's turning those windmills a kilometre away.
Einfach Nur brutal. Tolle Arbeit!
It has to make some big thrust in order to keep the windmills behind spinning.
Next level, mount it on top of your vw
I love the dead/burnt grass.
*_Genial._* 👍🏻😲
Wünsche dir viel Erfolg bei den weiteren Versuchen und dass die Turbine irgendwann mal in einem RC Jet zur Verwendung kommt.
Ich werde deine Arbeit von nun an mitverfolgen. 🤗
Danke Dir👍
Ein Einsatz in einem Jet ist leider ausgeschlossen, da ich "Null" auf Gewicht Wert gelegt habe.
Das Ding mit Nachbrenner wiegt 18 Kg😉
Meetings, oder Jettreffen kann ich mal besuchen, gibts aber eher selten im Raum Hannover.
Mfg Andy
Hugely impressive! Subscribed.
It's a little unfortunate you're not getting 40% extra power with the afterburner. 😢 but I'm sure you'll stick with it.
Good Job. I'm looking forward to your next video 👍
Man oh man I got just one word Awesome!
that's freaking amazing dude good for you lol good god though I would love just to have a smaller turbine, this is wild; I was looking at just attaching a small turbine to a glider or something, this changes everything. The progression of life itself in our innovative ways of nature is obviously never going to slow down, and still amazes!
Hi Josh,
Thank you!
Andy
Impressive ! Great ingenuity !
Awesome, man ! Keep up the excellent work and post videos please !
Oh man, that look cool!
thats impressive
That’s quite a beauty you got there, would be a shame if you had a rapid unplanned disassembly event. But seriously nice work! 😀
Einfach nur herrlich!
Не хенд мейд двигатель (хотя в целом, да ) а скорее здесь главное, то очём я всегда мечтал, примастить к так себе агрегатам....
ФОРСАЖНУЮ КАМЕРУ!!! а вообще зачёт!!!!👍👍👍
Very nice... especially the car ramp the powerplant is on. :)
That's awesome man, well done
Very Impressive Engineering!
Das nenn ich ein Osterfeuer! Top!
Great video, dude. I already have a rough idea of what my plane will look like, but I couldn’t find an engine that fits it. Now I’ll just need some gasoline
Very impressive.
Dude your channel is about to explode, we would love to see your process--you could use the funding :) I'd watch every ad
Einfach nur geil. Sehr schön
WOW!!! Well done , excellent.
Pretty nice for an rc F-16
Da wird Kreta geil
The scenery is full of planet-friendly wind-turbines and here you are, turning kerosene into noise. God bless you sir!
Ein Feuer an dem man sich gerne wärmt ;)
OMG.......... You will put that monster on a RC jet fighter later??? Maybe it’s too big to be legal I don’t know the rules about maximum scale size.....
That was so so cool, you’ve got a new follower!!!
Big salut from France 🇫🇷
VINZ 🙋♂️
jet nozzle size = more or less thrust
reheat at or near or max thrust
Great engine
This needs to go in on RC aircraft
Nice! Excellent job on the reheat section. Those mach diamonds were impressive. Something I was thinking, a good improvement on the design would be to tap some bleed air, route it to a manifold, and inject it into a liner in the reheat section to provide some cooling air for the reheat casing, and some film cooling for the internal nozzle plates, if it has an internal/external plate system. Perhaps also adding some external cooling air vents for cooling the external nozzle plates, if equipped with an internal/external system...
Hi Jeff,
no worry, the nozzle is made of Inconel and I have a double liner installed.
Andy
Если изучить "диски маха", а потом, на основе их геометрии, создать форсажную камеру; на определённой частоте вращения, камера войдёт в резонанс и тяга увеличится, но вероятно увеличится нагрузка на корпус форсажной камеры. Можно будет регулировать резонансную тягу, в узком диапазоне; это будет значительно экономичный двигатель, с продолжительной работой на форсаже с увеличенной тягой.
Very impressive ...! Good Job..!
I was waiting to see this video if somebody is going to build one of those or not
Love the sound & flames..... Woo Hoo.....
this is the guy responsible for making the wind turbines efficient lol. with hydrocarbons!
I would love to see rc plane fitted with this beast
That would be amazing to put into an rc place
'
wow beautifully jetmotor...
look alike F-16
This should be classified as a music video...