Thanks for the wonderful video, and a huge thanks for not ruining it with crappy background music. I don't know why some people feel compelled to add annoying background music throughout their videos.

Good job. I worked for a company that was one of the first to develop protective coatings for turbine blades and vanes for the major engine manufactures. I worked there from the mid 60's to the late 90's. I was the solo operator of our scanning electron beam microprobe. Great's job in the world.

This was extremely informational and I learned a lot. Thank you Katie.

Very informative video. My grandad, along with 2 other people, has his name on the patent for the manufacturing process of manipulating the way the crystals are formed. Essentially him and 2 other people invented this game changer. Never really understood what he did only it's importance but this video helped. Unfortunately we lost him at the beginning of 2021 but he was a brilliant and very social man. RIP David Denton

Excellent video with great engineering and technology information. I worked as a student at Rolls Royce in their advanced engineering department doing computer stuff for robots. There were lots of turbine blades in the office. I got a true sense of the magnificance of these machines

I think you did a very nice job here. Thorough and accurate. Ignore the naysayers about the narration, that all comes later, the important part is presenting the facts truthfully.

This is awesome. I used to work in aerospace grinding and shaping all different types of metals and materials for jet engines. I worked on all different types of individual parts and pieces that make go into making magnificent machines. It was a very cool company to work for and interesting work.

very helpful video. but why do sound like if you where presenting this to Stalin

Some things I learned while watching your video: 1) Single crystal (SC) turbine blades became a game-changer for the aerospace industry, from airliners to jet fighters and beyond. 2)It seems you did the entire narration with a single breath. Kidding aside, the best thing to do is do the narration in small bite-sized chunks and then stitch the audio together while editing it with the visual elements. 3) Portioning out the narration will avoid losing one’s breathe towards the end of the video. 4) The shorter segments will also allow one to practice the “flow” of the narration, which will allow practice for complex and hard-to-pronounce words. I am interested in producing my own videos for my work as an engineer and your videos have provided me with much knowledge and lessons to learn from. Thanks!

I love how everyone here is giving you positive critiques on your video. Great topic and it was the first result when I searched for monolithic turbine blades.

Need to do several rehearsals with a friendly audience until you can give the talk as if it were just a regular conversation. Keep up the good work! Metallurgy is an incredibly complex subject. Many of the techniques you mention were first developed for making improved steels (Vacuum-based and Electroslag Remelt ultra-strong steels) and then converted to non-steel alloys.

Thank you, this was a good summary for some in HS or who knows nothing about the basic metallurgy of aero turbine blades.

6 years ago. If you are still getting comments I will say well done. a lot of this blade history I have not seen in my readings. Good job. Obviously, you had time constraints, nonetheless, good job. Thank you.

The nervousness of the voice almost -- almost -- overpowered and excellent message.

Love it ! Exactly what I was looking for, very impressive

Excellent information from one who was in the Materials Lab at Pratt & Whitney during the 1970's. A little off on the chronology of coatings, etc., but close enough.

This video was great. I was watching the How It's Made; Jet Turbine Blades, and it was so uninformative and inaccurate, this is far better. Probably the only little mistake I caught was saying that turbines push the hot air out of the exhaust producing thrust, when in reality they they extract energy from the flow (in this case to run the compressor and accessory drive gearbox). Pretty much everything else was excellent.

interesting. you sound like you see the script for the first time and told your self: "i can do this in one take". so many new and long words, right? :D

Very informative presentation. Thank you for sharing this.

Great job young lady! I thought I knew a lot but I learned a whole lot from your video. ty

Informative, enlightening. Thank you.

This video has everything I was looking for. And it is also concise. Thanks.

Great job!! Really good explanation

THANKS KATHERINE, A VERY INFORMATIVE VIDEO.

Very informative. Thank you!

Very informative. Thanks!

Good job KB. Love the info. Now I need a larger hat size.

This is my career field. Great job with the facts.

Thank u katie, i love gas turbine tech, this explained a lot about the blade development...nice! 😎

I posted a "like". Text was good, graphics excellent. Sounded like the first time the narrator had ever seen many of the words though. This can be fixed with practice. Thanks for the vid.

Great job! Thanks for this

Thank you for your interesting informative video. You did a good job. We're proud of you. With practice, you'll gain more confidence. Everything gets better with practice & time.

Good effort on a complex subject.

Se vc esta aki devido a uma questão do fórum de materiais metálicos, eu sinto a sua dor

Sounds like reading from a script that was chewed by a dog 😂

Thanks for this infomative video. I really enjoyed it. I wonder what else can be grown that way?

it's kind a very helpful for me thanks......

Valuable content. Thank you

FYI, the tech in the video is used F-14 Tomcat. There has been a new innovation since: 1) TurboFan has a gearbox reduction to spin slower for a larger intake fan, thus obtaining a higher bypass ratio. 2) Computer aid design for better blade airflow. 3) Better drilling technique for smaller holes + CAD design for even more efficiency.

Well done.

Thank you for the informative video.

This is so good. Thank you!

One thing though - the turbine doesn't push the hot exhaust gases out of the engine. It's the opposite, exhaust gas makes the turbine spin, which is turned into generating even more thrust.

I have no doubt the lady narrating this is a real sweetheart!

thanx for the attemp . nice job . keep on going .

Very nice and informative video. But narration can be improved. Try to be more relaxed during narration.

Great video. Awesome job

This seems like it was made for a school project

You really do need several dozens more rehearsals...

Excellent!

Calm please, because you are doing thing which is excellent...

Quite informative! Good job!

Thank you

very informative video well done

Nice job Katie!

Thanks a lot

Well done!

Even if the exercice was clearly stressful for you. Overall you did a very good job and by the way you have a nice voice.

Loved it. But you missed the part where the holes in the blades put a boundary layer of air between the blade and the hot gasses, protecting the blades.

good information, I would like to make a small addition: let's not forget the 100% Titanium aluminade tubin blades. Regards.

Wow Amazing video..

Beautiful

good work 😆

Very good video congratulations

The jet engine isn't what causes the lift, it only provides the propulsion. The wings create almost all of the lift. 1:07

thanks.

Nice work, Katie. Really nice work. What are you doing now, I wonder.

Very nice

good video!!!!!!!

Good information about it for people who are studying for it! Lovely greetings from Captain Sarah Sutter (Boeing 747-400F/747-400BCF) and good luck in your future with engineering and science and have a lot of fun with it! 👍🙋💖✈️

Katherine....i'm taking my time to type you something uplifting, sometimes when we read or speak fast our tongues denies help,but you did a great job, personally i congratulate your work......if the links to the sites could be typed below the video? Your work would be extensively followed!!!!

That's a jet fighter engine , but anyway they work the same... cool video :D

must say , this is my fav video by this artist

Very interesting processing info. Better then listening to a robot

Lots of challenging words

What about the thorium/aluminum breakthrough

Turbine blades actually don’t push the air out. They extract energy from the air to power the compressor, which is what pushes air.

very good collation. would be nice to have links to the references :)

Good research. After all the good work they did designing internal blades in my opinion they all fell off the bus when they designed the turbofan. One of the tests a new design must pass is the ability to keep a turbofan engine contained if one of the turbofan blades brakes or falls off. I think it's just a matter of time. There are videos of that very thing happening. If you sit in first class you really get to hear the hammering noise they make. Maybe you could do a video on their design and how it was ever passed and put into commercial use. Good video very informative

Nice and informative. Good Job.

Pretty good job young Lady, just relax and let it flow and you should always know the material and pronunciation inside out, just takes practice. B+

I hear she is a hardware designer now

I am going to go with the tiller.

The way she’s pronouncing the metallurgical terms I can tell she’s not a specialist in the field, but good job!

Professor Bernhardt Thank you for making a difficult concept easier to understand Good luck in your future endeavors Dr. Barry L

The turbine blades do not spin to push combustion gasses out the tail end. Combustion gasses soon the turbine blades as they exit the tail end of the engine. The blades are blown like a windmill by the combustion gasses, they are not spinning to push the gases out. The turbine blades extract energy from gasses to run the compressor stages. Keep up the good work though.

What's cool is I work at a factory that produces the compressor blades for turbine engines.

Just subscribed to your channell. But why you haven't uploaded anything else since. You did well Katherine. As an ex (retired by 10 years) aircraft engineer I heard many instructors and others who have stambled , but were top knotch teachers. Regards

What grade did you get on this project?

Mam can U Tell Me what kind of thermal coating is used in Today's Jet engine Is it aluminium based thermal coating Or ceramic coating

Great Job!! I learned a lot. You might have meant "Hot Isostatic Pressing" verses "High Isostatic Pressing"

To all mechanically challenged readers here, please allow me to explain to you that jet engines is no different than propeller type engines based on pistons... What you re seeing here in this clip is the inside of the jet engine that can spin three or four times as fast as the fastest piston engines around. You see those shallow blades all around in stages from inflow to outflow is functioning the same as piston engines.. Piston engines is more clunky than jet engines so piston engines cannot spin as fast. The exhaust of jet engines is just a glorified tail pipe that does nothing to propel the jet with wings.. It is just hot exhaust blowing out that do very little to propel the jet with wings.. it is the outside taller blades that you see in front of the jet engine that is acting as the real propellers that act as superpowerful fans that is what propel jets with wings.. Wings help lift jets with total assistance of the front blades of jet engines that propel the jet forward only. Wings lift, control , brake the jet around as pilots need to. Rockets is dfferent than jets because rockets use higlhy explosive exhaust coming out of bottom of rocket engines to propel the rocket vertically without any need for wings . Rocket engines can be swiveled left right front back as needed to keep the rocket steady as it climbs vertically . Back to jet engines,, those compressor fins you see inside the jet engines is working the same way as pistons. through compression of the intake air into the combustion chamber of yet other set of more heat resistant compressor fins that release the combusted air /fuel mixture as exhaust much similiar to the valves that let air in and out respectively. Same thiing! But jet engines is more sophiscated means of spinning the shaft which in turn spin the outside front taller propeller blades that numbers in dozens unlike just three, four or five blades seen on piston engines of the airplanes.. The reason is that piston engines cannot turn more than five propeller blades because of air resisitance.. You have tried to crank a hand held fan of sorts before and you know how hard it is to crank faster than you wished to due to your weak muscles.. Jet engines can crank the shaft much harder and much faster than piston engines can.. Just remember ... that both piston and jet engines do not use the exhaust to propel the airplane forward.. it is the bigger front blades that you see so clearly showing in the front side of the jet engine.. Rockets do not intake any air becuase it use compressed oxygen tanks as intake air to make loud explosions inside the rocket engines feed by rocket fuel of choice . Solid state rocket engines is another technology that doesnt use oxygen tanks at all becaue oxygen is solidified inside the solid fuel tanks..

Single crystal or sx casting!

You know...when you lift material from other people's copyrighted work, the right thing to do is ask them, and at the very least quote your source... like putting a link to my channel maybe? I know you're trying, and are always improving,

personally, I'd wager to say the mos important part of the plane's flight would be the wings.

Good info but I would not have published you draft version. Better to practice more and deliver a polished audio.

(minute 1.11) what is the program name ?

00:28 "Imagine trying to fly from New York to California..." Or, From San Francisco to Boston, Massachusetts...

Calm down while you narrate, none gonna eat you. Take care, take a full free breath...best of luck, you're earning your potential. Hoping to hear best next time. And oh, btw very thorough metallurgy explaination

I'm no expert at narration, but just a tip from my limited experience: give yourself time to breath and relax. Take big pauses; and if you trip up/misspeak, start that line or paragraph over. Then, you'll have a really long audio recording; *but* you just delete the dead air and bad takes, which is basically the simplest kind of audio editing.