Corrections from Joexer (a subscriber) 1:28 When Running Properly, fuel in an aircraft cylinder engine should not explode; An explosion or detonation is a malfunction and is very damaging to the engine. 1:57 - 2:25 While you are correct about the cooling and aerodynamic aspects there is also a huge aspect of efficiency, ease of manufacturing, maintenance, "ideal conditions", power to weight, fuel and metallurgy technologies and even vibration certainly come into play. 2:29 Maximum speed is not the sole benefit of a different engine technology. 2:32 Rocket engines are actually more efficient in some ways than turbojet engines under the premise of speed per fuel and weight. It is more propulsively efficient because of its light weight and small size for the weight with a propulsive efficiency of about 70%. 2:47 Jet engines is a poor choice of words because a rocket engine is a kind of jet engine. You seem to have conflated it with turbine engine. A Jet engine is any kind of reaction engine, that discharges a fast moving stream of mass to generate thrust. A Rocket engine or even a Pump-jet, as may be found as propulsion on a boat are both jet engines. The aeolipile dating to around 150 BC was also a jet engine. A Turbine engine is merely one such kind of jet engine. 4:01 A Ramjet is not a turbine engine as it does not make use of a turbine for compression 4:32 Modern Fighter Jets do not use Turbojets, they use Low Bypass Turbofans which are the previously mentioned turbofans with less bypass. Its also not very powerful. 6:02 This is not accurate. A ramjet is only like a rocket in the sense that it is a Jet engine. Unlike a rocket a ramjet is airbreathing and uses relative wind to the aircraft to slow and compress the air, then, it adds fuel to and ignites. It cannot function like a rocket and does not have oxidizer. Ramjets also begin producing meaningful thrust around .5 Mach at sea level (384mph) Also this misses a LOT of huge elements like, maintenance, economic factors (like fuel costs), distance, the mission requirement, aerodynamic drag, the limits on each kind of propulsion, other efficiencies, temperatures, density altitude, manned aviation concerns like pressurization, heat and time for the pilot, also you did not mention Lift, Bernoulli's, Otto cycle (Piston) or Brayton Cycle (Turbines) and perhaps greatest of all, The inevitable tradeoffs that result from anything that expends energy.

During the Second World War there was a test aircraft in Switzerland which was powered by a wood gasifier. It was called AC-4 (HB-USI) and required 34kg of wood per flight hour. 😀 The aircraft still exists today and can be viewed in the Flab & Fliegermuseum in Dübendorf.

The videos are amazing, very interesting and very easy to understand. I wish this video was made 5 years ago, because at that time I had a project about aeronautical technology museum for a college assignment. I think this video can really save my time.

Incredible. Thanks for visualization and animations of these engines, since it's much easier to understand that way.

This one is way more informative than I had thought. Thanks for greater understanding.

A very interesting type of piston engine used in aircraft for some time was the rotary engine, where the whole engine rotates and the crankshaft remains stationary. The Wankel engine has also been used in aircraft as a proof of concept. The Pulse jet concept was also used in planes although again not very successfully.

I was wondering for a very long time about all this engine types... Thank you

The best video I have ever seen about aircraft propulsion system. Interesting, simple, easy to understand and concised yet detailed information.

During WWII the Germans and Japanese experimented with Pulsejet engines as well but they were mostly used in explosive ordinance. There were some prototypes/ concepts using the Pulsejet and it is pretty interesting. Especially the Japansese Kamikaze jet.

One of the most beautiful video that I've ever seen

You didn't include the 5th type, the rotary radial, but you showed it on the front of the Sopwith saying they used this for cooling. Rotary-radial engines are quite different from radial engines, and should of had their own part and animation in this video.

Well explained and well documented. Keep it up 👍

Very useful. Easy to understand video. Thank you!

Great video! Very well put together.

Thank you very much for the Chinese subtitles, which has greatly helped the group with poor English and the high-quality popular science of aircraft engines!

Love this video Detailed, good explained Perfect

Great video, breathtaking animation! Thanks a lot.

Great video

Fantastic video, very well done

Excellent Video - very well explained.

the video was so good 💯💯 , i was looking for this kind of video only for my research works . loved it thank you very much for this video pls make more video like this .

This is the best explained cylinder engine motor vid

Very nice video, fun, easy to follow, very interesting and information. This mans underrated.

Thank you!

damn well explained as always

Very informative

Great stuff ! The steam plane really was a surprise !

Thanks for the illustrative presentation.I gained a lot from your video

Amazing explanation learnt a lot thankyou bro

This is really well done.

thank you for the explanation, the explanation is very easy to understand and the animation is very good. I as a teaching teacher about aircraft have been greatly helped by the videos that you and your team made, I hope you and your team will continue to work for the world of education. let me also download and make teaching materials for my students. thank you

wonderful video thank you

Well done.

Great clearification

Thank you so much

These "Turvo"prop engines are awesome!

Beautiful 🎉🎉

Amazing video!!

Excellent 3D presentation. A sub and like for that.

Very informative video thanks.

Awesome information

Very nice presentation, and informative for engineer's.

Excellent video.

Belle présentation simple ,concise ,et instructive. Merci

Excellent Animation

Very informative.

very well organised and explained, love it. learned a lot, tnx dude! waiting for more educational content like this from you. cheers 🖖 by the way you made all this engine animations yourself?

This video is very helpful. Thanks a lot. Can you please make a video which includes the questions that mostly asked during interview for an aircraft technican. I mean technical interview questions. That will be a great help for a lot of people.

Excellent explanation 👏 please do more videos on aeroplane parts 🥰

thanks for the nice and interesting video clip !

very good work...keep it up

Am very impressed...Thanks bro

Very interesting video. Well done!

Beautiful explanation! 💯

Thank you, this is very educational.

I want to become an aircraft mechanic and this is a great video!

شكرا جزيلا.. بارك الله فيكم 😇🌸👍

The images and information are great.

amazing information keep going

Thank you soo much sir for your great informmation.

Great content as always

Nice video

Super explanation 😃

Concerning the SR-71, at speeds above Mach 2.5, the spikes on the front of engine intake retract reducing airflow into the compressor and diverting it around to the exhaust where the afterburner ignites the fuel with it. I believe the process is gradual to prevent a flameout. At maximum speed the engines are operating as ramjets.

Amazing.thnx so much.i really enjy and like this video.i love to watch new advancement in aviation technology.

Amazing

Thanks for this information , I wish successful for you forever ❤️

I learn something useful today,

Very good explanation

Informative

So amazing video... Keep doing more 🔥🔥

Awesome video!

That was a very good video.

Very interesting video

good vid, u should ve talked a little more about ion propulsion, its really interesting from what I ve seen.

Awesome

Super.👍

Thanks For share Knowlege in Sample words.

thank you needed this making me self a rc with an good plane prop engine

very good i enjoyed watching would like to see more

Thanks!

Stupendous video, you should have mentioned the scram jet

I like how simple it is and easy to understand all in all.. tho willnyou ever make a video on variable cycle engines? They're not a common sight but basically they can change from turbofans to turbojets on the go, mostly prototypes for fighter jets

Its awesome

Thanks For your very good video and helpful

I have only a 1: 4 Scale Corsair, but the Radial with 250ccm - what a Amazing Sound ! ( want to build the Black-Bird out of carbon.. 1: 5 Scale! Great Video thx !!! 👍🏼🇦🇹✌🏼

Very good and very nice bro

U r simple a superb explainer 👏

Very nice 👍

that advise was amazeing im subscribeing to you

very use full this vidio

Very good

Great video! thanks for sharing! I would like to ask you, what software did you use to make this animation? I would appreciate it if you could answer!

Very good presentation...no other disturbing bgm....❤️

Thanks

I wanted to shout out the propfan: an experimental engine that could be described as a cross between a turbo fan and a turbo prop. It looked like a jet engine with propellers attached to the back. They ran a few experiments, but the advantages never emerged, and it was extremely loud.

There is also the pulsejet, like the one used in the German V1 during WWII. Basically it is a tube with a self-resonant combustion chamber.

Thank you Would’ve been nice to include how some of these engines start. Especially the jet engine.

thanks

One note about the turbojet / turbofan. Turbojets on mil aircraft were phased out in the 50s / 60s. All modern fighters use turbofan engines, just with different bypass ratios than the ones used on big planes.