James is amazing... Thanks for watching!! Please thumbs-up and subscribe! ...

I've been flying RC for 24 years and have scoured youtube for video explanations of RC turgine engines. This video has by FAR the most lucid and comprehensive description of the engine's operation! Not just that, it covers the design evolution too. All the dozens of centrifugal compressors I've seen and didn't realise the obvious fact until NOW that the design is based off vehicle turbochargers. Not to mention the wonderfully detailed explanation of the combustor's hole design. For something that appears so low tech i.e. a can with holes, actually has an extremely specific design dictated by the complex thermodynamics and fluid mechanics in that area of the engine, to the extent that jet engine designers liken it to "black magic". And this video gives a decent idea why. Watching this was like getting my engineering fix through a needle. Thank you for posting! :)

As a (semi-retired) Licensed Aircraft Engineer, I found the skills and grasp of all the necessary engineering principles involved in creating this miniature gas turbine absolutely astonishing - to the point where I may have to begin searching local scrapyards for an old car turbo unit myself..! This also proves that men - and women - in sheds still rule..!

Beautiful backyard jet, nice how the fuel is injected

What a fabulous insightful presentation. As an ex RR guy this has inspired me to make one myself. Thank you for sharing this.

Truly fantastic demonstration/discussion! One of the best explanation of basic miniature jet engine designs I've ever seen - bravo!

I was once a member of the GTBA... I wanted to build one of these engine from scratch...I never did but I'm able to replace my own bearing thank to your research and work. Jesus from Artes was very helpful too Now all we got is these "cocky fly by night" turbine companies that believe they work for nasa lol...They need to recognize your work. Great video and thank guys

Am a huge fan of jet turbine. Building one for myself. Not sure it will self sustain. But I did learn a thing or two from this video. Thank you so much

Plywood compressor hitting 75k rpm. That's legendary, salute

Just wow ... just wow ... my heads spinning

I forgot how great this video is... James is a brilliant educator!!! :-)

Most excellent explanation, chaps! Thanks for sharing this content.

The jet with wooden compressor is a Schreckling FD-3 64, designed by Kurt Schreckling.

Wow. What a brilliant explanation.

Just one slight correction, a turbine works on 4 cycles is however no 4 stroke engine. Turbines usually work on the basis of the joule cycle and actual 4 strock engines usually on the Otto cycle or the diesel cycle. Even a 2 stroke engine differs slightly from the otto and diesel cycle. Besides that very nice presentation, i didn't knew that people used wood for compressor wheels.

Even i also want to make my own model jet engine ,you are brilliant bro👍🏻☺️

4:09 I think the 5mm gap at your finger tip between the turbin blade root and the combustion chamber output leaks hot air into the aft bearing from the rear, which can damage the bearing. Also the turbulence of air leak itself reduces fuel efficiency. The improved version at 5:36 shows the 3mm gap is much smaller and more reasonable. But I think the factory made engines keep the gap smaller than 1mm.

I like a bit of gas turbine. I shall join.

WOW, just amazing. Dubious, i posted one for you about glass blowing. I could have watched for hours. Such an amazing craft.

Wow very nice thank you for sharing your hard work and dedication I really do appreciate your videos

Wish to see more similar videos, if you kindly move camera closer would be great , thank y so much for the video

Thank you for making this video! Great explanation!

Fascinating!

Very good video and message full

Good info

please more videos like this

You guys probably visited trinidad back about 20 years ago, I still build gas turbine

I'm subscribed. I fly model turbine airplanes and just love learning all the science involved. Thanks for dropping some knowledge.

Awesome.

Very cool

Thanks for explain....modal turbine engine ... working process...

I’ll try to make one myself in the future 😍

Fantastic interview! thanks for making this video!!

Best explaination .....wow...

Very cool.

Wow!

super

Best explanation. But the way he says aluminum is the funniest thing ever 😂😂

Good luck

Really good video :)

Nice video. Wouldn't call it a 4 stroke engine though. You explained the 4 processes of an ICE but they apply to a 2 stroke engine as well.

James did the axial ever run? ive dug mine out of the chicken shed to give it a good clean up, get it back up to original condition again

awaited about ramjet machines

Thx

Am planning on building a 3stage axial flow 1stage ngv. System

Did you every visited a country in the Caribbean about 25 years ago , back then I built à single stage ngv and open combuster before knowing about the gtba

Welded a lot of inconcll and hastloy c276

In theory a gas turbine, is much simpler to construct than a reciprocating pistion èngine it only has 1 moving part , the shaft, with bladed fan assembly at either end. A pistion has 3 to more depending on design moving parts. My first turbine about 3 inches diameter single stage 2 stators a single piece combustion chamber , about 5000 rpm

I'm sorry I'm no rocket scientist but those two engines are totally different my friend

Браво

Can Copper Tubes as sleeves to cover the vaporizing tube, will it survive the temperature of Combistion chamber ?

one question ive had for a long time is why havent RC Jet engine makers made an axial flow engine yet? is it due to price and complexity? ive seen one off ones but i mean mass production ones. very interesting video though!

What will happen if I made the outer blades of diffuser in straight form without curve ?? Thank you for explanation ❤

Epic explanation ❤ , could we get the plan of this jet ??

Hi Sir, amazing video, Can you make a video on phoenix super panther. As I am an engineering student as well as a model engineer enthusiastic.

Great video , how bearing lubrication is achieved? Thanks.

How does the bearing's lubrication-cooling process works ? Where are the pipes that feeds oil to the bearings ?

How can someone contact them? Kindly advise

Why don't they make jet engines like they use in fighter jets? These look completely different

I would actually like to do this , is there any drawings , or where can I get the information??

if your aiming for more air to be moved through so that you could get more thrust then i would consider building an axial flow turbine as opposed to these centrifugal turbines

How do the engineers know how big to make the fan blades for the engine?

2000 deg C!! Is any part of material of this engine exposed directly to this temp? Or is the engine protected by the air shield from this high temp? James explain that they introduce just small amount of air to the combustion zone (small holes) and than at 2. zone they introduce more air for unburned fuel to burn off and the third delution zone where larger holes are located has the joy to introduced 75% of air to drop from 2000C downto 800C where fast moving air is lead to the turbine wheel. my question is are the walls of combustion champer (first zone) exposed directly to the temp of 2000C?

wher is the video about the axial turbine?

was the milled compressor made of aluminum or steel?

Actually I am making fd3 . could you tell me please that the book say to use 608bearing which dimension is 8*16*5 . Could I use 8*22*5 dimension bearing it's few large than? Sorry for bad English.

Dear Sir, how the fuel is injected in the comb.. Chamber is that atomise or liquid form? How even possible that burning liquid form (I tried but went vain ) Please reply Respect from (BANGLADESH)😍😍😍😍

Why is this dude carrying around a tribble?

I am in need of a double shaft turbine if some one will make it for me

Then thatbit goes googeleygoogley gargled and the flames gopooof

I wish to build my mini jet engine but i dont have any idea about the diffuser and turbine blades angle

You offer drawings for these?

Connecticut

That alloy that he's talking about is fucking expensive one bolt on an aircraft made from that alloy cost Boeing 2k a piece.

is that a shaving brush the interviewer is holding :-)

"only uses 18-20% of the air coming in" is that because air is comprised of 21% oxygen and all of that oxygen is used for combustion? Or is he talking about 18-20% of the 21% oxygen component coming in, so only 4% of the available air coming in is used for combustion.

Jet engines are just big feedback loops. I'd say all engines are.

75000 rpm or 7500 rpm did I hear that wrong 75000 rpm??? That’s insane considering it’s wood, handling that centrifugal force

Where can we get this engine?

Can I buy one?

Itsounds likehebeleives it?

10:10 engine & model name?

how do jet engines work ... simply ... they suck .. they compress .... they ignite .... and they exhaust ... instead of taking the energy and making a psiton move to make a crank shaft turn to make a flywheel spin to make a drive shaft rotate to make your wheels move ... you spin fans to make shafts move and let the compressed and heated gases left over out to provide movement ... . yup they are JUST 4 stroke engines made to move air instead of pistons ... they are also more work efficient because they use the excess heated gases to propel you ... while a car engine just uses that heat to keep you warm in winter and otherwise cools it with a radiator wasting all that nice potential energy ... just like NASA discarding rocket boosters and fuel tanks every launch to get into space ... while a jet turbine engine is more like elon Musk which uses as much as possible over and over again to get into space ... the old adage .. waste not want not ... NASA never used it Elon is ... what he doesnt discard he reuses making it less costly in the long run . IF nasa reused the fuel tanks from the shuttle as building material for the ISS it could be big enough for a space hotel NOW but they chose to do like americans do all over (everyone essentially) toss their garbage and leave it wherever they like ... a good 80% of the JUNK orbiting earth is GARBAGE because it is not working or end of life or discarded rocket bits ... the shuttle when being designed was touted to be able to retrieve that JUNK and return it for study and resale as scrap or reused parts ... but they never did that instead they made it into a bus with a little haul capacity to get more junk into orbit. .

This video hindi lauguage change

I’m sure mr Wittlemadehis socomplicated.

It's dubbed and EnGLisHe

I think your every engine without NGV😁😁😀😀🙄🙄🙄🙄

Please in spanish

mm

All those smarts and the English still mispronounce aluminum. ;-)

0:58 is he mocking him by that vomit gesture? how rude are u?

Hello James. Nice work.. Please how can I contact you