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Homemade Jet engine, finally thrust :-), scale on limit?

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Praendy

Praendy

Күн бұрын

Пікірлер: 289
@leokimvideo
@leokimvideo Жыл бұрын
Just stunning, what a little beast. Nice achievement
@Praendy
@Praendy Жыл бұрын
Thank you😊 Andy
@ahmddeb2001
@ahmddeb2001 Жыл бұрын
Was wäre, wenn wir hinten vier Rotorblätter anbringen würden? Wird der Schub stärker?
@mohdsaifulmohdsaid852
@mohdsaifulmohdsaid852 Жыл бұрын
make it turboprop
@cpunut
@cpunut 39 минут бұрын
I like the photo of the pile of shavings next to the lathe 🙂 Nice indexing and milling work! Repurposing of off the shelf items is creative. The tight clearances say a lot about your machining skills! Very nice result.
@zoriox8667
@zoriox8667 Жыл бұрын
It's incredible the sheer amount of performance a small addition like the cone can add on
@kobusdowney5291
@kobusdowney5291 Жыл бұрын
And a 3s battery instead of a 2s on the fuelpump...
@D4RKBRU73
@D4RKBRU73 Жыл бұрын
the 3S is to blame for the majority of gain not the cone
@williamwinsor7376
@williamwinsor7376 Жыл бұрын
I am really impressed. Great start great control of temps. Those cones can be really tough to make.
@Praendy
@Praendy Жыл бұрын
Thanks 👍
@prolska
@prolska Жыл бұрын
@@Praendy danke for the content!
@cambridgemart2075
@cambridgemart2075 Жыл бұрын
You have done a great job, keeping the EGT that low shows a lot of potential, if you can get another 10k RPM, the thrust is going to be so much greater. Looking at something like a KingTech 450N turbine, they recommend a 2200mAh 3S battery for the ECU; it is worth looking at the fuel consumption figures (which I imagine will be very similar to yours) and what pumps they are using.
@charlottegrieff662
@charlottegrieff662 Жыл бұрын
This has to be the best home built GT I've seen, with real usable power. Awesome job!
@Planteatingmammal
@Planteatingmammal Ай бұрын
Wunderbar!!.. einmalig... beautiful piece of machinery.
@martingraser6938
@martingraser6938 Жыл бұрын
Eine wirklich tolle Arbeit. Und grandiose Kenntnisse in Strömungstechnik, Festigkeitslehre, Mechanik. Mach es betriebssicher und verkaufe es als Drachen und Gleitschirmantrieb. Meine Bewunderung hast Du!
@moschettiflavio3635
@moschettiflavio3635 Жыл бұрын
This thing is impressive in every possible way... a nozzle using a garden lamp! Holy god! And it fits perfectly! And the, thrust jesus!
@petergebert4817
@petergebert4817 Жыл бұрын
Wow!:680 Grad bei Vollgas und kein bißchen Glut zu sehen. Da laufen Triebwerke von Serienherstellern bedeutend heißer (obwohl sie nur 650 Grad AGT anzeigen/messen) Echt gelungene Arbeit, Hut ab!
@craigpavlich9212
@craigpavlich9212 Жыл бұрын
So impressed by the clever use of found parts like the garden light!
@shorelovr202
@shorelovr202 Жыл бұрын
Tony Stark built this is a cave!!! With a pile of scraps!!!! Awesome work. Don't lock yourself down to what's been done already. If man thought these up, they did ages ago with many limitations.
@koenjanssen81
@koenjanssen81 Жыл бұрын
Awesome!!!! I really enjoy these updates in the progress. Thanks!!!
@Miata822
@Miata822 Жыл бұрын
Amazing thrust! You do beautiful work. It has been a pleasure following this project.
@Simon_Rafferty
@Simon_Rafferty Жыл бұрын
Very impressive build. Thank you for the subtitles in English. I did understand a fair bit of the dialogue though - my Technical German is clearly better than I thought! I love Jet Engines!
@eduardojud56
@eduardojud56 Жыл бұрын
the kind of job that I love... low budget and high skills, congratulations!
@longimanusisurus132
@longimanusisurus132 Жыл бұрын
Enhorabuena, crear algo de la nada, idearlo, diseñarlo, hacerlo, y que funcione, siempre es una gran satisfacción personal.
@sammymuturi2024
@sammymuturi2024 Жыл бұрын
This guy has improved from previous jet he made. Fantastic!
@johannesbergstein7706
@johannesbergstein7706 Жыл бұрын
Großartige Arbeit und erstaunliche Leistung des Triebwerks. Übrigens, wir haben das gleiche Kennzeichen (Ortskennung)...
@Praendy
@Praendy Жыл бұрын
Moin, Danke, ich komme aus Wunstorf, falls du das mal sehen möchtest. Mfg Andy
@paulbrouyere1735
@paulbrouyere1735 Жыл бұрын
Wow, what a beauty you produced without CAD. I can almost see how that beast is going to propell a beautiful jet through the air. Thanks for showing your professional skills. I don’t think the salad bowl expected to be used (or abused) like that😅
@pulsorohr
@pulsorohr Жыл бұрын
Das erinnert mich an meine Studiumszeit wo ich eine UT160 gebaut habe. Immer wieder geil! Danke für das Video! Gruß Stefan
@Praendy
@Praendy Жыл бұрын
Danke Stefan👍 Hat die UT funktioniert? Mfg Andy
@pulsorohr
@pulsorohr Жыл бұрын
@@Praendy Moin Andy, zur vollsten Zufriedenheit. Etwas über 160N Schub. Gruß Stefan
@Praendy
@Praendy Жыл бұрын
Sauber👍👍👍, na dann habt ihr ja noch einen Geheimantrieb für nen full pull😊
@MaxSupercars
@MaxSupercars Жыл бұрын
45kg thrust! Wirklich toll. Und noch 10.000 rpm sind möglich. Toll! 😊
@Praendy
@Praendy Жыл бұрын
Hi, wenn ich noch 5000 schaffe, bin ich zufrieden. Hauptsache die Waage ist am Anschlag😉 Mfg Andy
@C-M-E
@C-M-E Жыл бұрын
Yay, you did it! Still betting on that theoretical 150lbs of thrust. 👍 Add: I missed it the first time, but I used a tea kettle for an intake house once before due to the pre-cut hole being rather nice. Never thought about using it for a nozzle, but I tend to have sized exhaust runners for a free power turbine on my larger units.
@Praendy
@Praendy Жыл бұрын
Hi, I think 150lbs are possible. I like to use household stuff. Next test with afterburner😁 Thank you! Andy
@C-M-E
@C-M-E Жыл бұрын
@@Praendy I meant to add this to the previous comment but forgot during musings on tea kettles, but as I'm sure you're aware, jet engines really don't 'wake up' until they're above that magical 90% throttle zone. It's not uncommon for a well-engineered example to almost double its power output going from 92-104% throttle, though it's also right on the ragged edge of temps spiraling out of control. When you said you still have or expect another 10k rpm to play with, that's where there's a mighty lump of power dwelling in that hole. The AB on your current configuration ought to be Real Juicy!
@Praendy
@Praendy Жыл бұрын
I know, what you mean😁 So far it was only a hot fart for the engine. I guess 150lbs are minimum, but I also want to take care, not to overstress the engine. Now its 4 years ago, when i start the build. In April 2020 was the first run and now I have some positive results. 100lbs + afterburner should be ok for some tests and displays😊 Andy
@winstondippenaar1006
@winstondippenaar1006 Жыл бұрын
Now i will build my own plane and fly
@dallynsr
@dallynsr Жыл бұрын
Fantastic! Amazing improvements from before. Very nice work.
@Praendy
@Praendy Жыл бұрын
Thanks a lot! Andy
@sugonmadyik6222
@sugonmadyik6222 Жыл бұрын
Thank you, you are my hero. Now i know how cone tail efect on trhust.
@223mike
@223mike Жыл бұрын
Absolutely fantastic work!
@Dustmadeout
@Dustmadeout Жыл бұрын
That's impressive! Nice upgrades as well. I hope someday you open us a secret how to make thermodynamic calculations for such engines...
@BHARGAV_GAJJAR
@BHARGAV_GAJJAR Жыл бұрын
I guess the clearances matter in these type of things that can reduce the thrust significantly especially at smaller scales
@slipstream5542
@slipstream5542 Жыл бұрын
love the progress absolutely beautiful job engineering and making the engine progress waving from Nevada USA love getting nee uodates from your channel
@Praendy
@Praendy Жыл бұрын
Thanks 👍
@arjenchristianhelder1027
@arjenchristianhelder1027 Жыл бұрын
what an amazing job! so impressive, i work with a lathe and all, not professional yet at all, to see you make that with such cleverness, its really impressive!
@sammymuturi2024
@sammymuturi2024 Жыл бұрын
Maybe add a starter. Your work on genius level.
@larrykostopulos1332
@larrykostopulos1332 Жыл бұрын
Fantastic work. Now all you need to do is build an aeroplane around it. Go for it.
@kawi63603
@kawi63603 Жыл бұрын
That’s really great to see! Now that’s what I call homemade!
@alphaindustries5775
@alphaindustries5775 Жыл бұрын
That is honestly incredible! I cant wait to see more!
@milolouis
@milolouis Жыл бұрын
Beautiful work, congratulations.
@lancehermann3692
@lancehermann3692 Жыл бұрын
Fantastic job my friend!
@THEOGGUNSHOW
@THEOGGUNSHOW Жыл бұрын
Simply amazing fabrication skills 🎉
@aleksandrkargin1978
@aleksandrkargin1978 Жыл бұрын
46 кг. и это - без форсажной камеры!💪🏻👍🏻🎉
@Soshstar999
@Soshstar999 Жыл бұрын
Nice jet engine to say the least, especially for a home built engine
@Praendy
@Praendy Жыл бұрын
Hi, Thank you😊 Andy
@uzifouryoutwosay
@uzifouryoutwosay Жыл бұрын
Ausgezeichnet! Hallo von Der USA. Deine motor ist so cool. Viele Dank fur den videos.
@Praendy
@Praendy Жыл бұрын
Hi, Danke aus Deutschland😊 Andy
@assarstromblad3280
@assarstromblad3280 Жыл бұрын
Really cool. Wanna see the thrust numbers when it reaches maximum RPM and has an after burner on aswell. Greetings from Sweden!
@DEV_XO
@DEV_XO Жыл бұрын
Amazing videos mate! Watched all of them!
@thecorbies
@thecorbies Жыл бұрын
VERY impressive work. Well done.
@steffanjansenvanvuuren3257
@steffanjansenvanvuuren3257 Жыл бұрын
Please be careful of loose objects at the intake. I don't want to see your SUPER STUNNING jet engine disintegrate. GOOD JOB!!!
@armskote4121
@armskote4121 Жыл бұрын
very impressive. great engineering.
@pauljs75
@pauljs75 Жыл бұрын
That's rather good for a home-built unit. Two of those with the current thrust, and it would be sufficient for a manned micro-jet type aircraft with decent performance. (Look at the numbers for the BD-5J.)
@buzzabuzza3494
@buzzabuzza3494 11 ай бұрын
Very talented guy 👏👏
@robertgardner7470
@robertgardner7470 Жыл бұрын
You have so much fun. I would have made the diffuser on rotary table make mill cuts every 12 degrees. I can't believe you did that on your lathe which of course resulted in random irregular spacing. You can get hearing loss without wearing hearing protection. At least use ear plugs.
@Mister_G
@Mister_G Жыл бұрын
Brilliant! That is already a beast, but it is barely awake with another 10k RPM to go! 😃
@khaibaromari8178
@khaibaromari8178 Жыл бұрын
This is awesome, you MUST build a plane with it!
@rcpowres
@rcpowres Жыл бұрын
Echt super!!!! Auch grandios wie der Diffusor gefräst wird. 👍👍👍👍
@Praendy
@Praendy Жыл бұрын
Danke😊 Andy
@KevinATJumpWorks
@KevinATJumpWorks Жыл бұрын
Sehr beeindruckend! Die Idee mit dem Konus aus der Solar-Gartenfackel war echt gut! 😁 ....und mach dir nix aus mangelnden CAD-Kenntnissen. Ich kann CAD und könnte sowas nie bauen, also das sagt echt nix aus. 🤣
@griffn14
@griffn14 Жыл бұрын
That's some impressive work! 👍👍👍
@jstone1211
@jstone1211 Жыл бұрын
the Germans are great engineers with great mechanical minds. I worked for Liebheer Mining USA for a few years,.
@-aliensmithy5327
@-aliensmithy5327 Жыл бұрын
Very nice your new model engine
@alexnet8943
@alexnet8943 Жыл бұрын
Тяга 46 кг это супер👍❗И очень хороший звук у двигателя ! Значит всё нормально🙂👏👏👏
@davidmertes6308
@davidmertes6308 Жыл бұрын
Super Arbeit, kann sich echt sehen lassen.
@Praendy
@Praendy Жыл бұрын
Vielen Dank! Andy
@Radium_Productions
@Radium_Productions 4 ай бұрын
You might even be able to get a higher thrust on a colder day! Air would be denser and it would expand more if it's cold at the intake.
@Pitchplus8
@Pitchplus8 4 ай бұрын
Schöne hilfsturbine für einen gleiter oder so 😁💪
@frankmccann29
@frankmccann29 Жыл бұрын
Wundabar! Danka.Dana. Wright Brothers eh? Nice job.
@matekochkoch
@matekochkoch Жыл бұрын
Please do me on favor, when walking behind the engine and standing in the exhaust, please wear safety glasses. A stupid bug, or its grilled remains smashing at 500km/h into your eyes might cause permanent damage.
@phamduykhanh7564
@phamduykhanh7564 Жыл бұрын
amazing job
@DR-br5gb
@DR-br5gb Жыл бұрын
Wow that thing's a Monster!
@jasonneedham6734
@jasonneedham6734 Жыл бұрын
Well done.😊
@lazarus8750
@lazarus8750 9 ай бұрын
Deutsch kalitat ! amazing job ! barvo.
@holmansolis
@holmansolis Жыл бұрын
Excellent...How did you make the fuel system and gas system?...Thanks
@FiresidePrinting
@FiresidePrinting Жыл бұрын
That must have taken a long time to build properly.
@BorisVolanti
@BorisVolanti Жыл бұрын
could you make a tutorial on the inside? I might've missed it but I'm trying to make one myself. I'm making a model with internal combustion, what're the advantages to combusting at the rear? Also if you could make a link to some of the parts you used that would be awesome. Are you using one or two rear turbines?
@gregtaylor6146
@gregtaylor6146 Жыл бұрын
Wunderbar Andreas!!!
@markedis5902
@markedis5902 Жыл бұрын
So now another with a better bypass ratio?
@rodrigocunha34
@rodrigocunha34 4 ай бұрын
Is possible to bleed some air to move a dynamo and a fuel pump? Congratulations, awesome work! 🙂
@Praendy
@Praendy 3 ай бұрын
@@rodrigocunha34 Hi, i dont know. Thank you👍
@banarcus
@banarcus Жыл бұрын
WOW impressive!!
@henrybartlett1986
@henrybartlett1986 Жыл бұрын
Incredible!
@imanmohamadi2827
@imanmohamadi2827 Жыл бұрын
I really love to see this on a RC?
@JazzbLu
@JazzbLu Жыл бұрын
Now that is more like it! 100 lbs of thrust! I wonder how much more thrust you will be able to achieve?!
@jodifu6274
@jodifu6274 Жыл бұрын
This is an extraordinary piece of workmanship! Would you be willing to sell drawings and/or a builder's manual for it?
@olehbezushenko9191
@olehbezushenko9191 11 ай бұрын
Tja, da weiß man jetzt, wie ungefähr damals der Jumo-008 Motor-Prototyp für Messerschmitt Me-262 hergestellt worden war) Tolle Arbeit, großartig!
@chiron9536
@chiron9536 Жыл бұрын
How do you machine the curve on the intake?
@Praendy
@Praendy Жыл бұрын
Hi, very careful and only with my eyes. Machining some material off and check the contour with the wheel. It takes some time, but it works.😊 Andy
@silvacore
@silvacore Жыл бұрын
Fantastic!
@Manatee-Sailing
@Manatee-Sailing Жыл бұрын
Sehr creativ...und genau mein Humor. E-Auto fahren und 100erte Liter auf dem Feld sinnfrei aber sehr schön abfackeln ;-) Weiter so 🙂
@Praendy
@Praendy Жыл бұрын
Hi Christoph, irgendwie muß man ja mal an die Natur denken. Als ich mit meinem Touareg ins Grüne gefahren bin, hat man sofort gedacht, Umweltsünder. Mit dem E Auto hab ich nun ein "reines" Gewissen😊 Danke Dir👍👍👍 Andy
@JDK73772
@JDK73772 Жыл бұрын
This is amazing. What is your end use for it? A small single seat homebuilt aircraft with a pair of these would be very fun.
@cubicspider5295
@cubicspider5295 Жыл бұрын
aircraft regulations anywhere in europe is just "if you want to fly, you need a license" which can cost a lot ofc so unless he already has one i'd say it would be quite expensive to just do for fun
@robinseip3713
@robinseip3713 Жыл бұрын
Wahnsinns Arbeit 👍💪 Geile Sache mit der oberfräse😁👍 Man muss sich nur zu helfen wissen, dann geht alles 👍😁 45kg Schub is schon echt mächtig, Hut ab! 👍 Wirst du die verstellbare düse mit Nachbrenner nochmal montieren und testen? Bin schon einen ganzen Moment am überlegen, auch eine düse in der Art zu bauen, aber da ich es immer mit dem nachbrenner übertreibe, wird die Wahrscheinlichkeit nicht zu verklemmen sehr gering sein(weißglut😅). Vielleicht mache ich was mit einfachen übelappenden schiebestückern, die nicht frei beweglich sind, aber bin mir noch komplett uneinig😅
@Praendy
@Praendy Жыл бұрын
Hi Robin, Geiles Bike😁 Könnte in der Tat etwas mehr Wumms vertragen, aber immerhin fährt es. Der Nachbrenner funktioniert und zündet auch hervorragend. Ich werde den Nachbrenner auch noch testen. Zuerst brauche ich eine stärkere Zugwaage und etwas wärmeres Wetter. Die Plastikschläuche sind hart wie Stein und alles ist undicht🥶 Deine Nachbrennerdüse scheint recht klein. Was hast du denn als Triebwerk? Einen Turbolader? Mfg Andy
@robinseip3713
@robinseip3713 Жыл бұрын
@@Praendy Hey Andy Dankeschön 😁 Bin echt gespannt, wie sich dein Nachbrenner mit dem neuen Setup macht😁👍 Hab letztes Jahr im Juni mit dem Bike angefangen und mich in dem Zug leider auf einen viel zu kleinen turbolader fest gelegt. Sollte günstig sein und eine gute Ersatzteilversorgung haben. (Komplette neue Rumpfgruppe mit Wuchtdiagramm ca. ca.50-70€😁) Da wurde es dann ein Garrett gt2052v mit 38,5/52 verdichter. Der turbo ist mittlerweile aber absolut an seiner Leistungsgrenze. Hab bei 2,1 bar ca. 6kg schub😂 Gerade so Fahrbar macht's dann erst der Nachbrenner.😅 Mehr Druck traue ich mich nicht, der fliegt echt fast aus einander.😅 Hab jetzt aber noch eine Rumpfgruppe fertig gemacht mit einem gefrästen 38,5/55,2 Verdichter. Die Rumpfgruppe wartet jetzt aber noch auf ihren Einbau. Wirklich viel mehr Leistung wird da bestimmt nicht kommen. Baue deswegen noch eine zweite Brennkammer für einen gt3582 Nachbaulader mit 61,5/81,5 Verdichter. Hab als Ziel ca.30kg Schub raus zu kitzeln. Mal schauen, ob's klappt.😅 Mfg Robin
@giovanibalduino
@giovanibalduino Жыл бұрын
Very good job my friend! Can you estimate fuel consumption in WOT (100lbs of trust)?
@TheGRENHORN
@TheGRENHORN Жыл бұрын
Super Geil.... auch das scheinbar alle die ich kenne die gleiche Waage von Amazon für ihren Standschubteststand benutzen 🤔😁
@wololo10
@wololo10 Жыл бұрын
Nice 208
@themechbuilder6171
@themechbuilder6171 Жыл бұрын
would that be enough to power a model jet?
@aspboss1973
@aspboss1973 Жыл бұрын
Just amazing 🔥🔥🔥🔥 I mean 46kg! wow....
@wow1022
@wow1022 Жыл бұрын
what type of bearings do you use and how do you oil them?
@Praendy
@Praendy Жыл бұрын
Hi, I use angular contact bearings with ceramic balls. Search for 7003😉 Lubrication is like in smaller turbines. Fuel+oil and a certain amount is used for the bearings and then burnt off. Andy
@wow1022
@wow1022 Жыл бұрын
@@Praendy Interesting I've been wanting to look into making a turbine with a shaft extension that's capable of driving a generator
@lawahanglimbu6220
@lawahanglimbu6220 Жыл бұрын
Hello guys, i'm planning to build a turbo jet engine, but I lack stainless steel tube to make sleeves for vaporizing tubes. Can Copper Tubes survive the heat inside the combistion chamber ? Will it be a good choice to use a copper tube as a sleeve ?
@matekochkoch
@matekochkoch Жыл бұрын
copper gets really soft when heated.
@TheMilkiestCereal
@TheMilkiestCereal Жыл бұрын
What material did you use for the rotors?
@alphaindustries5775
@alphaindustries5775 Жыл бұрын
What is the slowest speed you can start the engine at?
@Praendy
@Praendy Жыл бұрын
Hi, Around 11 000 rpm the engine is self sustaining. Andy
@hotrodbuilder32
@hotrodbuilder32 Жыл бұрын
Just a thought on your thrust numbers, could the actual thrust produced be more due to the fact that your not pulling on the scale square but at an angle?
@Praendy
@Praendy Жыл бұрын
Hi Joshua, You are right👍 The thrust is a bit more than the scale shows. For me its nice to know😊 So the real thrust is maybe 50 Kg. Andy
@ArcturanMegadonkey
@ArcturanMegadonkey Жыл бұрын
Fabulous!
@jean-marcducommun8185
@jean-marcducommun8185 Жыл бұрын
Gratuliere! Daniel Düsentrieb ist ein Bastler dagegen, ich bin beeindruckt. Wird das Ding mal irgendwo eingebaut? Ferner wäre ein Tableau in der Beschreibung mit möglichst vielen Angaben interessant zusammen mit ein paar ergänzenden Bemerkungen. Ich frage mich zum Beispiel was der Unterschied ist bzw. ob's ein Unterschied ist ob man im Stand den Schub misst oder ob sich etwas ändert wenn das Triebwerk in Bewegung ist.
@RoadRunnerMeep
@RoadRunnerMeep Жыл бұрын
Love it man :)
@mry1073
@mry1073 Жыл бұрын
What happend if you put afterburner
@Praendy
@Praendy Жыл бұрын
Hi, we will see next time😁 Its going to be loud and I need a biggeqt scale! Andy
@aeris-mo
@aeris-mo Жыл бұрын
Great work
@squa_81
@squa_81 Жыл бұрын
Do you think you will mount this on a sled/rc car?
@Praendy
@Praendy Жыл бұрын
Hi, I dont know, maybe a trike next time. But a bicycle trike for old ladys😊 Andy
@dnl_xr
@dnl_xr Жыл бұрын
Wie hast du eigentlich die Laufrad/Leitrad konfiguartion ausgelegt hinsichtlich der Winkel im Geschwindigkeitsdreieck? Wann bist du da im Optimum? Bei Volllast?
@Praendy
@Praendy Жыл бұрын
Hi Daniel, so war es Mal ausgelegt. Mittlerweile könnte das Leitsystem und die Turbine etwas "steilere" Winkel vertragen. Das liegt am neuen, größeren Verdichterrad. Mit der Performance bin ich aber sehr zufrieden im Gegensatz zu den letzten 2 Jahren rumprobieren.😊 Mfg Andy
@dnl_xr
@dnl_xr Жыл бұрын
@@Praendy mega cool! Ja, mehr durchsatz heisst auch mehr mediangeschwindigkeit. Was noch voll cool wäre - eine Variable Turbinen Geometrie 😍
@Praendy
@Praendy Жыл бұрын
Also bei meinem zweiten Projekt, dachte ich an eine VTG Anlage. Der Läufer ist von einem Turbolader und hat entsprechend eine Radialturbine. Allerdings hat der originale Turbo keine variable Leitschaufelgeometrie, also selbst basteln, oder starre Winkel verbauen.😉 Andy
@dnl_xr
@dnl_xr Жыл бұрын
@@Praendy klingt cool! Ich bin gespannt. Vielleicht geht sich ja mal ein Mörderprojekt aus mit Mehrstufiger Turbine/Verdichter und einen Fan-sprich mantelstromtriebwerk
Don’t Choose The Wrong Box 😱
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