What a nice end to weekend. Thanks for sharing amazing work!

Great stuff as usual Andy. I made my own NGV some time back and didn't have the tools to cut curved lines in the inner and outer cylinders of the NGV. What I did was drill two holes per blade per cylinder, and made two teeth on the top and two on the bottom of the NGV blades. Then I inserted the blades in between two cylinders, centered the two cylinders, and then filled them with plaster of paris. Then I tacked those blades all around and broke off the plaster of paris to fully weld the blades. This method works except for the fact that the plaster of paris melts during the tacking process and makes a little mess lol. However, it ended up well enough.

@Praendy

Жыл бұрын

Hi Shanaka, That works for shure😊 I did only cut a straight line for the trailing edge. The bent leading edge is only grinded to the shape. So only 8-9 mm will be welded on the inner cylinder. The outer cylinder will not be welded to the vanes, only "slipped over" the vanes with 1/10 mm gap for heat expansion. I hope next week the ngv will be finished, then you see the result😁 Andy

@shanakaliyanage6875

Жыл бұрын

@@Praendy thanks for the reply. Keep up the good work. Waiting for the next video - Shanaka

Impressive flame from reheat, like the SAAB Viggen in the old days!

You should experiment with ceramic coating particularly for the afterburner nozzle, you can see the heat causing it to expand.

@Praendy

Жыл бұрын

Hi Nick, I tried already ceramic spray, but it was a short story. The nozzle will resist the heat (Inconel), but I am working on more cooling the mix airflow before the nozzle. In this video you can see, how the ceramic chips come out of the exhaust after one run😊 Andy kzread.info/dash/bejne/Zmigo8ucoLPIfag.html

@Praendy

Жыл бұрын

The part is at 10:50

Brother you have done an amazing job on this engine.

Thanks for the updates, great job as always

Crazy Project dude i love it ! keep on going, you are a a real genius & awesome mechanic

Oh my, what a cool project! And I love the old balancing machine!

@prolska

Жыл бұрын

Lol he's building an old F110 in his backyard

Es ist unglaublich, wie weit Sie gekommen sind! 👍

Inspiring! Wish I had a lathe...

06:55 Very cool afterburner shots. 👍👍👍

@Praendy

Жыл бұрын

Hi, the fuel flow in this segment was too low, thats why the flame and the engine fluctuates😉 Thanks! Andy

Amazing work! Wow. Each video is so impressive.

@Praendy

Жыл бұрын

Thank you very much😊

nice work

Awesome job my friend!

Love all the sounds.... What's an NGV ?

Для предотвращения погрешностей и помех осевые упоры должны крепиться непосредственно к опорам, в которых вращается ротор.

Great work man, do u have plans for building this engine for fans trying to recreate it?

immer wieder geil!

Right at 7:00 it sounds like a fighter jet. At 7:21 that sound is so scary. It sounds like one of those old bombs.

very cool!

Sehr cool - und alte Technik ist nicht immer schlecht !! Vielen Dank - hab lange auf das Video gewartet. 💪💪

@prolska

Жыл бұрын

Danke

@goldenthemalinois3412

Жыл бұрын

vielen danke হাহহহ

Finde deine Arbeit so cool!

@Praendy

Жыл бұрын

Freut mich, danke!

I turned the volume up to understand you better. It didn't work. Thanks for this video!

Hi Praendy! Did you use additional fire injectors or did you just flow more fuel through the normal ones? If you did, I want to ask, why did you choose to place the them before the turbine wheel and ngv, isn't the risk of melting/deforming one of those components too big?

@Praendy

Жыл бұрын

Hi Zlatin, for the afterburner I use 12 additional fuel nozzles, only for igniting that fuel I use the nozzles in the engine. Thats the blue flames out of the turbine wheel. It is achieved by using much flow for a short timd. You are right, if I would use the engine fuel system, the ngv and turb whell will melt within seconds. Here a video from the a/b fuel nozzles. Andy kzread.info/dash/bejne/poB4rq5sYJTgYNY.html

what electric motor did you use? do you have a link? also what method did you use to control the RPMs? im trying to build my own and i need some information.

Ich liebe das Teil

👍😎

E MEUS AMIGOS ESSE BRINQUEDO E DE DAR MEDO E TOP DIMAIS EU QUERIA TER UM DESSES AI

Is ja genial!!!!👍👍👍👍

echt hammer leistung was du da gebaut hast RESPECT hast du vielleicht auch schon eine idee was du dann mit der turbine machst wenn sie fertig ist ? vielleicht in ein flugmodell einbauen ? MfG

@Praendy

Жыл бұрын

Hi, diese Turbine ist ein reines Modell, ohne Zweck. Es wiegt mit Nachbrenner schon gute 17 Kilo, da ich beim Bau überhaupt nicht auf das Gewicht geachtet habe. Mein neues Triebwerk soll allerdings flugfähig werden und befindet sich in der Endphase. Mußte mal auf meinem Kanal "Praendy" schauen. Das Teil heißt CPS 2022😉 Andy

@petha12321

Жыл бұрын

@@Praendy Joo geil werde ich mir mal anschauen 😍 auch das mit dem auswuchten wahr sehr interessant mach gerne noch mehr solche videos ☺

I'm guessing I can see smoke coming from where the afterburner combustion chamber attaches, because it's not fully attached to the gas generator right? Is this intentional to serve as some sort of suck in area to use for the AB combustion and cooling?

@Praendy

Жыл бұрын

Hi, in those tests, the afterburner is only attached with some screws. Usually there are 20 screws, but I took 10 or so, because of faster disassembly. Also some injectors are leaking from the brass ring and creating the white smoke, but after a few seconds they getting tight due to the heat. I try to get more cooling air to the nozzle by different afterburner flame tubes. At the moment there are too much holes in the flame tube. I have to get the cooling air before the nozzle. Will try it soon😊 Thank you! Andy

@Ronke01

Жыл бұрын

​@@Praendy hey, thanks for replying. You should have a look at making some sort of suck in opening, just like the SR71 used to do. There's some great videos on the topic around on youtube. Another way could be by bleeding some compressor discharge air and discharging it through an additional air spray tube in your afterburner combustion chamber.

@Ronke01

Жыл бұрын

​@@Praendy also, you seem to be getting a hot spot at the 5 o clock position on your nozzle segments. Are you using a flame holder near your augmentor spray ring? Also an exhaust stream straightener to straighten the airflow coming from your turbine is a must to get proper laminar flow, since I think your flow is too turbulent, causing the hot spot.

Heh the yt links didnt work for me but i finally found you

nice!

@Praendy

Жыл бұрын

Thanks for the visit

wie hast du eigentlich die turbine selbst gebaut, was für maschinen hast du insgesamt gebraucht um so eine turbine konstruieren zu können, würde mich gerne interssieren!

Und wie funktioniert diese Wuchtmaschine? Also wie wird unwucht erkannt?

@Praendy

Жыл бұрын

Hi, die hat schon damals Piezo Elemente für beide Wuchtseiten gehabt. Die oberen Hälften der beiden Böcke sind mit dicken Federstahl mit den unteren verbunden. Dazwischen befindet sich das Piezoelement und "spürt" die Unwucht. Diese wird dan an den Anzeigen wiedergegeben. Andy

@_aullik

Жыл бұрын

@@Praendy Danke. Es wäre eine nette Erweiterung des Videos gewesen so etwas zu erklären. Ich denke ich bin nicht der einzige deiner Zuschauer der absoluter Laie ist.

Hallo, bei Minute 7:23 ist das heulen erinnert an den Starfighter.

@Praendy

Жыл бұрын

Hallo Frank, das Geräusch hat was und wird von den Lamellen der Verstelldüse erzeugt, wenn die im Luftstrom tanzen und vibrieren. Danke😊 Andy

@1969Citation

Жыл бұрын

@@Praendy Hallo Andy, das ist ganz großes Kino was du da machst, mir geht als Metaller und Werkzeugmacher das Herz auf, allein schon diese Wuchtmaschine, wenn ich da die heutigen Schenk Anlagen bei uns sehe...

Servus, kannst du mir verraten um welches Modell genau es sich bei der Wuchtmaschine handelt? Was kostet so eine in etwa? Mfg

@Praendy

10 ай бұрын

Hi, Die Wuchtmaschine ist von der Losenhausen AG und man findet darüber leider gar nichts im Netz. Ich habe sie für 750€ bei Kleinanzeigen gefunden und gekauft. Bin dafür zwar etwa 400 Km gefahren, aber das hat sich gelohnt. Ein Din A4 Ordner Beschreibung war dabei, noch mit Schreibmaschine geschrieben. Mehr Infos habe ich nicht. Mfg Andy

@AgentPipapo

10 ай бұрын

Vielen Dank für die Info! @@Praendy

Hi Andy sehr schönes Arbeit Ich habe eine cooles Idee und gutes invest Wie kann man dich kontaktieren in Deutschland? Falls ist möglich danke !

كمثل هذه الفيديوهات لا يشاركها أصحابها لكي لا يتم مشاهدتها من المثقفين والمحبين للعلوم والعلماء والتقدم والحضارة. ولا لأجل أن يكون هناك اعتقاد عند بعض الناس أن من يشاهد هذه المشاركات يوهمهم أنه يستلهم التكنولوجيا بصفته اينشتاين أو نيوتن أو مجموعة علماء رياضيات وفيزياء وكيمياء وأحياء في شخص واحد وحتى لو لم تكن لديه إمكانات مادية بالمليارات فإنه يستطيع عبر سرداب الوقواق بن سملق صناعة هذه التكنولوجيا وأنه لديه قدرة على تسخير الجن معه وأنه خارق للعادة. دعوكم من كلام الاولاد يا أمهات الحسام

Где-то на россии рыдает Игорь Негода

@prolska

Жыл бұрын

ах да русские заимствуют немецкую технику лол))))

@KossNation

Жыл бұрын

@@prolska до форсажной камеры руки видать не дошли

ثم إنه حتى ولو كان المرء عالماً وعبقريا فإنه لوحده لا يستطيع أن يصنع ابره اذا لم يكن هناك مصنع ودولة خلف المصنع ومش بتصير لحالها بحكم الواقع الافتراضي الخيالي عند التراجاديين الفهلويين كل شيء بتقوله قام قلك بتصير لحالها يعني قصده. ما هي بالفهلوات. دعوكم من التفاهات يا المتفييات والمخلين وصهاده مع هقاوه نصل الى طناخة نشامى وحميه وخفاجيه

Hello help me please I'm from Russia I'm Chechen please

@JD54182

Жыл бұрын

Первый раз встречаю чеченца с именем Павел Иванович ))))

@user-lt9hh7ml2x

Жыл бұрын

@@JD54182 what you from please??

@JD54182

Жыл бұрын

@@user-lt9hh7ml2x Так по русски же пишу, интересуюсь самодельными реактивными двигателями, откуда я еще могу быть? ))

@user-lt9hh7ml2x

Жыл бұрын

@@JD54182 Where and how did you understand, as it were, that I was some kind of Chechen?

@user-lt9hh7ml2x

Жыл бұрын

@@JD54182 you Chechen???

Ive been waiting for this for so long 🥹🥹thanks Andy

@Praendy

Жыл бұрын

No problem, the "bad wheather" arrives slowly and I can build something again😁 Andy