The AI-25 turbofan engine, part 1

[@lesconrads]

I keep repeating this comment: these videos are incredibly valuable to me. I am in university, I am interested in gas turbines and I can calculate this and that. I have NO chance of seeing a real gas turbine being handled. All these details about bleed air and where to take it from, that the blades are mobile in their slots and stuff, I'd never ever see. I really appreciate the time you take to film, edit and upload these.

[@RafaelSantos-tg8qt]

As an aircraft maintenance student myself, I can say I like all the shots you film (even those you mentioned some people wonder about) because it is basically the most interesting thing to me and I guess it might also be interesting to a whole lot of people watching this to learn where all the components belong to and how they're attached where they are and how the system works as a whole. You can only understand how a system works when you learn the complexity of its components and the only way to see that is watching the whole assembly/disassembly process thoroughly. Thank you for sharing your passion with us!

[@leokimvideo]

congrats doing over 300 videos..keep em coming

[@slkgeothermal]

At about 6 minutes you said people ask " why do you video this?" Your answer was the same as mine would be "because this kind of thing interests me and I figure it's the same with other people". I have learned so much about turbine engines since finding your channel. Great job and please give us more, because I want to know more.

[@tonyhansom3160]

Thank you for making the videos, prior to watching your videos I like many people knew very little about the jet engine. You explain the principles of what ever subject you are demonstrating very clear and precise, you are a gifted teacher. Thank you for making the videos and please continue to do so.

[@geoffreywoodyear1585]

You do this out of love and for people like me who share that love.

[@MysticalDork]

I love quirky engineering like those structural stators and guide vanes. Another lovely thing about that engine that I can see already is the beautiful blue-purple oxide coating on those titanium alloy compressor blades. I'd be willing to bet that each stage is a slightly different color due to different heat levels.

[@MusicFranke]

Hi Jay, thanks for the video. I am an aeronautics student. Your are our real teacher because you teach things we cannot learn at school. Please keep filming. Thanks

[@blob537]

Congratulations for making it to 300! I discovered your channel a couple of years ago now, and have been watching ever since. I love that we get to see so many parts of the overhaul process, learn so much about various nitty gritty details, and see some of the test runs too. I'll keep watching as long as you keep making them, thanks for all the hard work! Bonus point for BC!

[@superdau]

Having interest in the inner workings of everything (I've taken stuff apart since even before I could handle a screwdriver), yours are the videos I want to see. There may be many videos of teardowns of all kinds of stuff (jet engines are rare though), but you know exactly what to film and how to explain it. It's almost telepathic, you take a part out, I ask myself "how does this work?" or "why's that there?" or "what if?" and 30 seconds later you start to explain exactly that, not too detailed and not too superficial. I've been into technical and scientific stuff for all my life, to the point where I can explain things better than "experts" or tell that they are wrong. But I've yet to find a video you made, where I could say that. And for me people I can learn from, deserve my highest respect before everything else! Thanks!

[@davidrogers1410]

Yeah because its what we like to see, See. Thanks for filming it.

[@yankh4]

Turbine engines are a combination of practical science and art. Your videos cater to both. Keep up the good work.

[@Lagahan]

Thanks for taking the time to make your videos AgentJayZ, 300 awesome interesting videos! Looking forward to seeing one of these engines running in the test cell!

[@NicPottier]

To answer your question, please keep filming these, fascinating stuff!

[@markfranks5171]

DON'T EVER STOP! I have been learning MORE about aeronautical engineering watching your videos than anywhere else just by watching these awesome works of engineering awesome be taken apart, and put together and watching them run and just exist on video! YOU ARE AWESOME! KEEP UP THE AWESOME AND ONE DAY I WILL BE FIXING AWESOME JUST LIKE YOU!

[@htweiss256]

Jay, I can't say enough about how much I appreciate your videos. I love turbine engines and it is very enjoyable to see you work on them, share them, etc. Keep up the great work. Thank You!

[@BTR608]

I never thought I would be addicted to watching youtube videos about jet engines. So cool!!!

[@markhodgson806]

Brilliant but I'm going to stop before I get hooked!

[@ivans7406]

I am doing the same! Netflix suck, long live Agent Jay Z

[@netsky3]

Same here. Damn ahah. JayZ better than netflix

[@classekaka]

"And that's why you're single!" was the reaction from my friends girlfriend when she realized that I was watching this on a saturday night. But in that case I guess I have to stay single, cause I can't stop following your videos. Keep it up man!

[@veeaa]

You should be thankful that you don't have such a superficial girlfriend! Find a smart girl who lets you do your own thing and not try to force you into her narrow picture of a man that's "socially acceptable".

[@sirichandananagandla6436]

People who r intrested in technology will definitely enjoy watching your work.. amazing work sir.. plz continue posting

[@djigan80]

Кто от Негоды лайк! Будем видеть сколько нас по турботяге))👍🤘

[@Lendor20]

лайк

[@Niva-for-Travel]

👍 🤝

[@jocelynkelly3294]

I am so glad you filmed this, I found one of these engines at our shop at school and I wanted to know more about them. Thank you!

[@the_rad_Panda]

PLEASE keep filming! this is awesome to watch and we learn a lot of it! keep those interesting videos coming ;-) greetings from Germany

[@BarryBranton]

I'm glad you filmed it.

[@alexdisla253]

i m addicted to these videos. thanks 4 sharing

[@bend1483]

I really enjoy seeing the inside of these engines. Amazing pieces of design. Pure function yet somehow still elegant.

[@dazaro3]

Very interesting videos ,looking forward to your next video.

[@alancollard8252]

these vids are awesome, please keep them coming,i didnt have anything but a rough idea how these turbines worked ,now watching you is magic,it is fascinating and instructive all in one,keep up the great work

[@LarryTipton]

My wife and I just recently had a conversation about, "because it's fun...". Many times she asks me why I do certian things the particular way I do them. And many times the only justification I have is, "because it's fun...". I'm with you! You're doing it because it's fun, and I'm watching because it's fun. Keep up the good work!

[@hybamchu]

All your videos are great, thanks for all 300 of them.

[@mgoetz]

You do a great job Agent JayZ! Thank you for sharing. Its really fun to learn about the mechanicals & theories of the turbines. I hope you continue to enjoy producing videos!

[@SpenCrowson]

You keep making them & I'll keep watching them. I have learned so much about the engines you work on. Please keep up the good work.

[@christophermoore5924]

Another vote for continued filming! I worked on LM2500s when I was in the Navy thirty years ago and I think your work is fascinating and entertaining. Please keep it up.

[@hyronov]

Can't speak for the vast majority but I definitely love your videos, congrats going past 300

[@twcaldwell1951]

as an automotive mechanic, I find this stuff on engines I have never worked on very fascinating. These videos take me places I can never go to in real life. Thanks AgentJayZ, for taking the time to video and post.

[@Paco7b573f]

Keep filming this stuff. Its interesting. You make this life better.

[@C-M-E]

DItto! I have no idea who's asking him why he films these, but I'm not one of 'em! I've learned volumes watching these for a potential project, and this little guy, other than being Russian and parts being an issue, would really fit the bill!

[@techknow8195]

I am doing Aeronautical Engineering and I am in Third Year. Yesterday we were doing turbofan engines and believe me I love what you do. Wish I could do my internship in your garage

[@plakic]

Great work agentjayz...keep those videos coming. Thank you for the effort you put into making them!

[@phd3333]

Toward the beginning of this video you commented on questions some have asked inquiring why you record your process. I thought this was a good time to give you feedback about my experience watching your videos. I look forward to watching because I find them informative and relaxing. You are obviously very experienced and have a great empirical approach to mechanical tasks. My job as a psychologist has me talking interacting and troubleshooting various human related issues. Your video style and the content I find really comforting and a great stress relief after a hard day working with people problems so thank you very very much. I work on cars as a hobby and look at the work you do as a power plant engineer like that of a wise guru. I have taken a lot of what I learned in your videos and applied it to my own hobby. Thanks for the effort and keep them coming. Great job.

[@trbishop3251]

That was great and this is my first time watching you and I live in West Virginia . I do not know anything about jet engine but I appreciate what you are doing . I would like to say thank you for taking the time to make these videos . I will keep watching .

[@Djembe908]

This is so much appreciated by me and so many others. Keep up the good filming and the good work!!!! Many thumbs up from me!!!

[@gastonnicolasrubio109]

Friend you got the dream job. live in a country where this technology is poorly developed, your videos are a constant inspiration for me. keep doing these videos are great and very interesting. Greetings from Argentina

[@achimhanischdorfer3403]

Congrats on 300 Vids. I like your vids because they are first and foremost interesting (for laymen like us) and I personally are extremly fascinated by how you can get such huge power out of a so small volume (of an engine). Turbines are awesome.

[@GiesbertNijhuis]

Yes, please continue making these videos! I just love jet engines. And your simple style of movie making is pleasant to watch.

[@zululeppard]

Don't stop making these videos- keep them coming -many thanks for all your work.

[@Gkuljian]

I love these videos. I used to have a small apu turbine in my garage. I never got the courage to start it up, even though I'm a master mechanic and engineer. Just too complex and mysterious. Watching you work on it is invaluable. I see even you get stymied a bit.

[@AgentJayZ]

+Gkuljian. Run that thing !

[@Quiche81]

You probably don't realise how fascinating your job is to the rest of us, keep making them and we'll keep watching them :)

[@d_shepperd]

Your videos are very well done and I find them very interesting and are exactly what I like to see. Thanks and I hope you continue to enjoy making them. I continue to enjoy watching.

[@ghblade]

you are great in explaining in a way tha every body who has a little bit of interrest in turbines will may understand well done i like it

[@rollcontroll]

Nice to see the inside of a turbofan too. Really enjoy your videos, film as much as you like. I'm going to watch them for sure.

[@doink76a]

Please keep making videos. Love them. Feel like I could rebuild one myself.

[@youtubasoarus]

Really amazing stuff man. These videos are a pleasure to watch. Congrats on 300! The tear downs are particularly interesting.

[@jefflittle4013]

Your videos are awesome. I am particularly interested in this engine as there was an L-39 that crashed in our town back in 2003. It was attributed to the pilot not heeding warnings that this engine has a long spool-up time. Keep the videos coming!

[@Guysm1l3y]

Congrats on 300 videos! I think the videos you post are fascinating, I love to see the innards of turbine engines.

[@juandeonisio]

I've been watching your vids for a year now. Awesome vids! Interesting roller bearing assembly.

[@geoffeg]

Looking forward to your next videos on this, really enjoy watching!

[@bartreardon]

wow..300 vids? that's more than some TV shows but with less ads. I love these videos. I have learn't more about turbines and jet engines from these videos than I would have from just looking at the 2d diagrams yo usually see, so keep it up. It may be fun for you but really educational, so thanks :) I'll keep watching for as long as you keep making them. Cheers from Australia.

[@ThomasGabrielsen]

Do people really ask why you are filming, for instance, an open jet engine? I've noticed that there is a lot of "unwrapping [product]" when someone has bought a new phone or whatever. Watching you opening an old jet engine like this are many thousand times more interesting than watching people opening a product they have ordered. I like your how you made this videos! I like how you go into details and explaining things while you're filming it. Your knowledge about what you are working on, like jet engines, etc, etc, is superb. Keep up the good work, mate! Thumbs up from me! (Edit: Fixed some bad typos.)

[@AgentJayZ]

Thanks!

[@ThomasGabrielsen]

AgentJayZ My pleasure! I was very tired when I wrote that comment (as I am now as well...) but It looks like you understood what I wrote. :-) I have a video wish/request. I have watched more documentaries about the masterpiece Blackbird available on KZbin and I think I understand the basic concept of how the engines works. I would love a AgentJayZ-video about the A12's and later the SR-71's engines. Thanks! :-) Keep up the god work!

[@thedulcimer]

Thanks so much for posting all of these! I enjoy watching them and as I prepare to leave flight instructing for the airlines, I am happy to learn all I can about turbine engines. THANKS!

[@Max_Marz]

Yes please!. I am very excited to see the rest of the tear-down and rebuild of this engine!

[@MrRobbish]

No need to explain, your vids are interesting and very informative.

[@LowRanger87]

You literally have the coolest job ever, keep up the good work!

[@DScottDuncan]

Hey Jay, good to see the AI-25s! I have been anticipating these engines & glad you are able to video. Looking forward to seeing one run in the test cell then, finally, in someone's pickup truck bed! You should be able to notice 3K lbs.! Thanks again! Darren

[@arnomaas6452]

thank you JayZ for the very interesting,educative and entertaining videos you are sharing with the world out there ! I hope you will keep on doing more of them and if possible with more engine variations such as this russian one !

[@warrigal07]

Keep the vid's coming Jayz. Your 1 lucky man having the job that you have.

[@RickPontefract]

Congratulations on making 300 videos. I'm looking forward to the next 300. Keep it up!

[@Coolkeys2009]

Interesting journey of discovery on that engine, seeing the other ways things can be done. Congrats on the 300+ videos.

[@lerkzor]

Jay: Your reasons for filming shop work are fine - but no matter to me, as long as you KEEP filming shop work!

[@PauloECosta]

Its fun alright! Keep it up J.Z. Thx and congrats for the 300!

[@atostesjr]

Fantastic job! With the engine AND the videos! Thank you so much for sharing.

[@correocasa3]

Absolutely awesome!!! Please keep posting more videos. Thank you!!!

[@micstonemic696stone]

your views and comments and likes say your video's are great into the world of jet engines thanks for making them

[@e.j.w1748]

You are correct in saying It's something that i'd like to see. You have the most interesting "show" on you tube.

[@DavidGalloway]

I'm subscribed. I find these videos fascinating. Keep up the good work! Congratulations on 300.

[@BillyBasford]

Great work as always J. Keep them coming.

[@malcey12]

Keep makeing these videos they're really interesting seeing the inside of the jet engine's. Mac in the UK

[@Phoenix-ej2sh]

Love this video. I share in your sense of wonder in digging into a new engine.

[@luispuig]

This man has the best job in the world.

[@Trusty_Steed]

Keep it up! I totally am geeking out on your videos! (Im studying aeronautical engineering).

[@64jorthom]

Many of us, have the way to learn about things, specially mechanical. When kids and younger, we disassembled toys and more, for one Christmas had a string airplane with a small glow plug motor. Those motors started to be bigger and bigger. With the time started to buy books and more books, if you don't have books and repair manuals, then you have to guess! In many aspects you have to be accurate with high tecnology tools, in order to torque small screws and bolts. Now, you have a litle problem, and I wonder how you're going to get specs to assemblying this engine. For aircraft motors, you have to make sure of everything! One cuban ship was detained in the Panama canal, 5 jet engines were found in one of the containers. At this time I don't know the where abouts of these power plants. Thank you for sharing your experiences with all of us! I do appreciate it!

[@racrx7]

You’re correct, this is the kind of stuff I enjoy watching👍🏻 I’d love to have a small one to roll out in the driveway and annoy the neighbors occasionally 😂 Keep the vids coming 👍🏻

[@JohnBare747]

Hell yeah it's interesting to see the insides of these cool engines, and to see a Russian one even a greater unexpected treat. Hundreds of videos down and can't wait to see 300 more.

[@davidrogers1410]

I love watching videos of Russians building just about anything, off road buggies, generators, jet engines very ingenious dudes. Makes me think there just cool people like us and would like to just hangout and build some shit. Wish our governments would have a couple beers and chill, seems like trump and Putin should get along with one another they have billions in common they should build something together and bond.

[@MaxDJsWorkshop]

Of course, now you have our attention, you MUST show us in detail why that engine is seized. Many thanks for showing us your work via 300 vids :-)

[@yoshiolives]

Thank you for uploading these!

[@cadex42]

These video are incredible. Keep them coming!

[@msylvain59]

This teardown of a russian jet engine is probably a youtube first, very interesting thanks !

[@lisandroantoniorodriguez9242]

OKAY. It is new !. An AL-25 !. It's like an old Spey. I would have guessed that the low pressure compressor blades were aluminium. Fascinating. You really have fun with turbostuf

[@motormouser]

Why do you film this stuff? We are SO glad that you do! Everything i always wanted to know about jet turbine engines,i love your videos and look forward to them every week.Cheers!

[@hommie789]

You keep making them cause it's interesting and the proof is in the number of people who watch and comment shows we like them too. You shouldn't point out how many videos you have as it reminds me of how much time i spend sitting watching them on KZbin. Keep them coming as I have many years left to waste and a slowly filling memory that thrusts for this knowledge. Can't wait to see the rest of this series as I want to see how the Russians build to get the same result as we do. .

[@jcims]

I watch every video you put out Jay, keep at it as long as keeping at it is fun!!!

[@jacobphillips9235]

Man, I love you videos! Thank you so much for doing this!

[@hendrikhendrikson2941]

Lucky you for being able to work on all of this candy. And lucky us for having you showing us :)

[@veeaa]

Thanks for the video Jay! Your'e right, it's really interesting not just seeing what you have done but also how you did it. Great to see a Russian engine for a change and the different approaches they have taken compared to the western counterparts. Here's one more Russian speaker so you won't have any problems with translation if need be!

[@swedeburg]

Look forward to seeing it run, Keep up the good work.

[@KarriKoivusalo]

I've been waiting for a low-bypass turbofan turbofan rebuild. And being russian, it has that extra little exotic bonus. What a treat! :)

[@express3158]

AI-25 was also powering Yak-40 passenger jet which I flew 30 years ago. It is a low bypass ratio turbofan as correctly mentioned in the video. It had an air starter powered by AI-9 APU. It is a 28V DC generator shown in the video, not a starter. Average fuel consumption was 400 kgs per hour. Quite high due to relatively low Max EGT in the 500C range

[@pyrexian26]

cannot wait for more videos on this beast i hope we get to see the engine in the various stages of dis assembly

[@armyrob211]

hey jay I just wanted to say I love watching your videos and we even used some of your videos including your newer one about the T58 burned up engine in class at my aviation school. I'm going to have my A&P around june if not sooner :D

[@RallyRat]

In frigid Soviet Russia, heat exchanger is called oil heated fuel heater!

[@grzegorzmniejszy777]

Thanks for filming it Jay !

[@AKENOXTRM]

Congratulations , I always enjoy your videos thanks for making them :)