Handmade Jet Engine, Afterburner With Fuel At Higher RPM
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- Опубліковано 25 лют 2021
- Hi,
testing afterburner between 40 - 50 000 RPM.
Sound incredible and a 3-4 feet flame
Thrust, I dont know yet, because everything will be checked when the engine runs reliable.
Andy - Наука та технологія
Wicked. Can't wait to see what the thrust this thing is putting out. Cool project, man.
Ready to put that table into orbit! =)
I know this would require a significant machine job, but in the event you really want to pull your skills to the test, an aircraft afterburner is actually air cooled with bleed air from the compressor in a shrouded tube with very fine perforations where the fuel is fed into the inner section and between the outer wall of the case and the shroud, the compressed air is run in a thin channel between the two. What air doesn't push through the perforations is shot out the back around the nozzle. It's not unlike how the combustion chamber works matter of fact. This is how they keep the AB's combustion area from melting and protect the 'turkey feathers' of the variable nozzle. Simple but effective air curtain.
Took me a minute to find in my bookmarks, but if you're not subbed to this channel already, you'll find a few hundred videos detailing almost every aspect of turbojets from a very knowledgeable fellow, Mr. Agent Jay Z. This one in particular shows what I was trying to describe in so many words, particularly towards the end. ua-cam.com/video/3SH5953iQ6w/v-deo.html
@@C-M-E Hi,
yes, I know Agent Jay Z and almost all videos.
Thats why I built my afterburner almost exactly the same.
If you watch the thumpnail or the last pic in the video, you see the inner flametube with all that holes in it.
The outer tube stays normal and does not glow.
Have to drill more holes in the aft section, to cool down the nozzle gases.😉
Andy
This is the most awesome diy turbo jet engine I have ever seen.
Design without the afterburner reminds me very much of the Rover 1S60, and spews flames the same way and sounds like it. That makes me happy to see. But either way, this is very nice work! Outstanding!
That is one awesome jet engine. Sounds like it has some great power/thrust and the afterburner is amazing and makes me think of a fighter jet with the bright flame and roar. Now for the giant scale f-16 or maybe a Sabre unless you build a second engine like this one for a twin engine jet. Would be amazing to see this engine in a plane and flying.
Very cool engine and video! It's nice to see a jet engine video that shows it running instead of 15 to 20 minutes of talking and set up and 30 seconds of run time. Well done!
Well, this is a quite unconventional way of trying to move a picnic table a bit forward, but - if one can try, why not. 😁😁
Really awesome work and project! Would love to see you build a turboshaft engine this size and put it in a race-mower 🤜🏻💥🤛🏻
This is epic brother. Subscribed. Can't wait to see the progress.
This is beautiful work!
Will you ever make more or sell any of your designs?
That's an amazing piece of engineering! Any idea how hot the afterburner exhaust is running? Must be pretty high to get the nozzle glowing that brightly that fast!
Hi Richard,
Thank you!
1500-1600 Celsius, I guess.
Not able to measure yet.
Need a high range thermometer😉
Andy
@@Praendy cool 😎 project man
Yes! Nice job!
@@leontierralta HE NEEDS TO BY PASS SOME COOL AIR FROM COMPRESSOR
I've been watching your videos I can say they are great, but it would be even better to know what your going to put this thing in!!!
Very impressive!
Thanks for the video ...from algeria 🇩🇿🇺🇸
Cool Andy. That looks very hot. The afterburner is made out of SS? Waiting for a walkthrough video of the system. Look so cool in dark.
Das Teil im RC Flugzeug. 🥲🥲🥲 Der Traum den ich seitdem ich Jet Engines in RC gesehen habe Träume.
So ein Modell würde ich nur mit FPV-Ausrüstung betreiben wollen. Das Ding ist so schnell außer Sicht, dass man vermutlich ständig am Kurven wäre, nur um nicht die Kontrolle zu verlieren. Und FPV-Fliegerei mit so einem schnellen Gerät hierzulande scheint mir nahezu unmöglich, ohne mit dem Gesetz in Konflikt zu kommen, ganz abgesehen vom organisatorischen und finanziellen Aufwand.
@@peterh1512 also der Rekord Flieger fliegt 700 km/h oder so und das geht auch
Very impressive! I wonder if one might mount this to an experimental aircraft frame like in the "Sub-Sonex" Jet. I'm sure such an undertaking would be risky with a home built engine but if it proves reliable and safe why not?
I am wondering if you can fit an EDF fan engine to the to provide more air to fuel rate. And the excess air from the EDF could be used to add a cooling system to the the jet turbine.
Wunderbar!!!
great job
for the afterburner injektion you can use the tip of an old disel injektor these have 150 - 200 µm holes
but it works great with your nozzles too
Hi,
kleine Düsen sind grundsätzlich gut.
Hier müssen aber pro Minute ca. 3 Liter Saft durchgejagt werden.
Da wird es schwierig eine passende
Pumpe zu finden.
Die Druckerdüsen haben 0,4 mm Bohrungen und meine Pumpe ist momentan am Limit.
Deswegen geht bei den Tests im Video auch nicht mehr Drehzahl, da die Flamme kein Futter mehr bekommt.
Mfg Andy
I absolutely love these videos @Praendy ! But from 1:53 to 5:28 , I am certain the poor quality wasn't due to dirty lens. It is definitely worse quality because of either setting in the camera at that time or how you uploaded and rendered those clips in your video editing software. which is disappointing because as you know, afterburner footage is eye candy. I've been watching your engine vids from the very beginning and has notifications for your videos because i love them so much. I hope to see more videos in the near future! Keep it up! Herausragender Inhalt!
Hi oops,
the setting from my Gopro is always the same, but a few minutes before recording, I put the camere directly in the exhaust stream.
The afterburner did not ignite and the camera got all the fuel fumes and oil on the lens.
Thank you very much, for like the videos.
Andy
@@Praendy Thank you for replying and informing me on the conditions. I appreciate the explanation! Cheers!
Hii andy (?), what is your thought of theoretically putting this engine into a miniature scale of an, f-4 or maybe an f-35 lightning II A? Do you believe it would fly well? Is it at risk of burning mid air? Or how heavy should it be? Also how long Did that large fuel tank last? I really love your videos keep it up!!!!!
Jemand hat wieder Spaß gehabt... 😃 Tolle Arbeit! 😊 Wo testest du es? Am Hobby-Flugplatz?
Moin,
irgendwie grad erst deinen Beitrag gefunden.
Ja, es macht Spaß und donnert in der Magengrube😉
Ich teste auf dem Modellflugplatz.
Da kann man jederzeit unbeschränkt lärmen und wenn mal was schief geht, schmeißt man es direkt über den Zaun. Da ist die Regionale Mülldeponie🤘
Andy
Did you make calculations about heat creep of the turbine wheel during startup or do you think that the startup time is short enough to not damage it? May a short-time change of the fuel ratio be a solution to prevent damages?
Hi Jakob,
I think its not a problem for the turbine disk. RPM is low and the spoolup takes not very long.
Try to get a bigger E motor. Cheers Andy
It’s not the flames it’s the glowing red parts on startup that gets scary because of the amount of money and work one has on turbines it is a real nail biter. It always happens on startup it’s so spooky though. A hot start is deadly.
Hi William,
I know what you mean, but the materials are made for this high temperatures.
A bad, old APU from the 737 reaches up to 900 -950 Celsius.
My engine is at 700-750 during spoolup.
It looks more scary in the dark😉
Andy
Need to put some bleed air to nozzle. It becomes to hot
YES!!
Those sparks are metal melting and getting ejected right?
Darf man fragen aus welchem Teil von Deutschland ihr seid? Das Projekt ist wirklich der Hammer!
Hi,
Ihr bin ich😉
Danke, daß es gefällt👍👍👍
Wunstorf bei Hannover.
Mfg Andy
@@Praendy schade dass das so weit weg ist, da hätte ich mich glatt mal zum Filmen und Fotografieren angeboten :D
good
Whoa
I thought the turbine blades would be glowing all the time... are the combustion gasses not hot enough to make them glow?
Hi,
no, the exhaust gas temperature is 600-650 Celsius.
The turbine is lightly dark red glowing.
The material is strong and made for this temperatures and rpm.
Andy
First of all congratulation. Can you just share if us how um you overcome the tempeture problem? What a try say is who avoid that metal are not melted?
Hi,
last picture in the video, you see a lot of holes. Thats the cooling for the outer tube.
The jet nozzle is made of Inconel.
Also a high temperature metal with much Nickel.
Andy
@@Praendy Can you indicate a pdf or book don't care how many they are where I can learn about RC turbines thank you. Are men like you that leading the way that make us more confortable to try trial the same path.
@@LofilabLofiHipHop
ua-cam.com/video/dz7bY_6D4Ro/v-deo.html
Thats a good video at first👍
You will understand the function of the different parts.
Andy
Das wird ein model Flieger aus der Hölle :D
I would like to see a diagram of that afterburner
Wie viel Schub in KG erzeugt es und arbeitest du momentan an Erhöhung des Schubs? (Würde mich sehr interessieren ☺️) und schaffst du auf 500-1000 KG Schub zu erhöhen? Freue mich auf deine Antworten. LG aus Herford NRW
Hi,
Schub wird nicht mehr als 100 Kg sein.
Ohne Nachbrenner sind 50-60 Kg möglich.
500-1000 Kg Schub wäre schon echt lebensgefährlich und in dieser Größe niemals realisierbar.
Andy
@@Praendy Dankeschön lieber Andy. Ich bin ein Fan von deinem Projekt und freut mich dein Kanal gefunden zu haben. Jet Engines liebe ich. Warum sind 500-1000 KG Lebensgefährlich? LG Majed ☺️
@@kimkardashianMajesty Meiner Vermutung nach braucht man in der Größe viel zu hohe Drehzahlen um den Schub zu erreichen. Und je höher die Drehzahl umso präziser muss das Triebwerk gebaut sein damit es nicht unruhig läuft bzw es sich nicht selbst auseinander baut.
@@skirata3144 Ach so. Wo kann man auf YOutube so einen Jet anschauen?
This is just the beast ear rape out there
Can it fly?
Наконец то кто то даёт больше жидкого
Do you know how much you spent to build this engine?
Hi Filipe,
So far, I spent 1700 Euro in all parts.
Andy
where can I get the plans of the engine only ?
Hi,
There are no plans available.
All designed in my head😉
Andy
@@Praendy smart man
Hast Du schon gemessen, wie sehr sich der Nachbrenner auf den Schub auswirkt?
Hi Jan,
mach ich, wenn alles tadellos zusammen paßt.
Kann nur sagen, der massive 4 Meter lange Tisch mit eingemauerten Füßen ruckt mächtig beim zünden und beim abschalten und die weiße Spritfahne bekommt beim zünden einen mächtigen Kick.
Bin ja auch grad mal im mittleren Drehzahlbereich.
Bei Volldampf muß ich meinen Teststand etwas verstärken, der mittlerweile mit drei M10 Schrauben mit dem Tisch verbunden ist.
Andy
Im kleinen Videofenster kann man ab und zu das Rucken sehen😉
Der Standort direkt vorm Grill ist doch nicht rein zufällig gewählt:D
Hi,
der Grill ist danach allerdings leer gefegt😉
Andy
Variable nozzle next?
Hi Greg,
already done👍
Have a look!
Subtitles available.
ua-cam.com/video/HPt10TzF00w/v-deo.html
Andy
Put the automatic fins on there
You need a sparkplug ;-)
Install the engine in your car
300th like!!
that's a expensive flame thrower
American build gun in their backyard
German build jet engine instead