"Thank you for your patience" This kind of in-depth explanation is just the cause I like to visit this channel. Excellent content, thank you sir!

the way he explains this actually make's my third eye see this as if i was looking at a illustration in a text book 'amazing'

This channel takes DIY to the absolute edge of achievment in a home shop environment. We need more in depth projects like this. Even if I don't build these projects, I learn so much that I can't stop watching.

This is an excellent channel, thanks for sharing so much amazing info!

This is fantastic and sad at the same time. I have rarely heard anybody explain things in such a clear, comprehensive and thorough way like he is. This is premium quality information for sure....and it has 203 likes. This should be reposted with a clickbait title like: how wings actually lift...finally REVEALED. Thank you.

You sir, are astounding. Great video, and I'm glad I came across your channel.

Best explanation of lift I've ever heard. I've been trying to reset my understanding since I learned Bernoulli's can't explain it fully, but was unable to find a good explanation. Thanks!

Just brilliant. Love your description of how an aerofoil/prop/wing works best I've ever heard thanks so much

You're a great teacher! I've never had such a complete understanding of airfoils.

Your incredibly generous gift of knowledge is greatly appreciated. Thank you.

18:20 - I like how you have applied boat building knowledge to the problem. This is why people that are conversant in many technologies can often find more innovative solutions.

You explained it well. Thanks for the clarity and the multiple examples. Can't wait to see the testing!

Great video it is so nice to have found someone that can prove why something works or doesn’t work

I just stumbled across this content. So excellent! I'm build my wire cut foam wings skinned in fiberglass. Thanks for taking the time to produce this. Best!

You are truly amazing. The depth of knowledge about such a wide variety of topics is just so cool.

Nice thermodynamic explanation of the Bernoulli effect. I finally understand the why of it, which has been bugging me for 30 years!

Wonderful work ! Thank you, and looking forward to viewing your followup videos.

Fascinating! Thanks for the effort you put in to this!

wow. just wow! looking at a propeler blande and finally understanding exactly why things are the way they are. Every piece of geometry on it has a reason. Nothing is random. And now seeing how i can even build it. That's mind blowing!

yeah.. you made the best explanation of the theory behind laminar flow. Thank you Sir!

This is amazing, I've been reading textbooks for weeks and didn't learn as much practical stuff

It was precise and to the point!! Thanks for that remarkable and insightful explanation

Very nice, looking forwards to seeing more. Using an existing blade to cast a mould is also a nice method, we used to do that for micro indoor models, they were a single layer but with a foam core a two skin propeller can be made in the same way.

I have been trying to understand how airfoils work for 2 decades! Everything I have ever read or been taught has simply said 'the air has to travel further over the top, so it goes faster'. Which doesn't explain a thing! Why does it go faster, rather than just take longer? I did a bloody Physics degree, and that was the only answer I ever got. You have just explained it, clearly and succinctly in about 6 minutes. If I could, I would kiss you. Thank you so much.

I'm most greatful to you for producing this video. It was very helpful and easy to understand. - Thomas from Australia. 🇦🇺

Well spoken sir! THANK YOU for uploading this.

You can feel how you get smarter by watching these videos! Thank you sir, you are astounding!

Brilliant presentation that is surely based on many many long hours of research , prototypes, production, modification and so on which obviously has been costly... Gracious of this channel to freely share all that has been accomplished. Bravo & Thank you.

amazing channel. i know its a pain to explain things you are familiar with but i learn so much watching you videos. i have a better understanding of everything from your in depth explanations. very grateful. but i’m still jealous of engineer scientist physicist and what you seem to just know

Amazing... Who IS this guy?? Where was he when I was studying engineering?

I like the fact that you DON'T try to simplify yourself, so that everyone can understand. We need tedious to fully understand. Don't apologize.

Wow. Can we make this guy the model that all other educators use? The rate of information and the clarity of presentation, the brilliant logic used to dissect the science... its just ideal, I mean really the exact right way to explain any complex subject. If the lecturers on my physics degree (who were all blindingly clever as well) could do what this guy does, I swear the whole degree would have been 10% easier to get through.

Man I love this channel - huge but definitely odd number of thumbs up on this video ! I love the thorough explanations ... I just hate it seeing people go like yeah nah it's just better that way - thanks for taking the time to make these video ! And kudos to everyone else involved in producing them - they look really nice - and that gimbal really adds coolness to each and every shot

Excellent -- background information is so important; will save lots of blind alley work; and your solution is very creative and demonstrates the time proven principle that your best tool is your brain. Thank you for all your hard work.

Great job as usual.

great work.

you are an absolutely incredible teacher!

That is a great badass picture on the cover of the video :3

Amazing video! So dense in useful information... Thanks a lot!

Very good explination. Thank You.

Great video! Thank you

Absolutely brilliant!

Great explaination.

Just loved watching this tutorial video. It's quite useful to me.

Engineers are usually so quiet and don’t talk about their work unless you drag it out of them. This one of the very best channels on KZfaq. There should be at least a million more subs.

Spectacular information.

This is excellent

You explain this better than any of my flight school instructors ever did...

Amazing stuff, thank you!

This explanation of airfoil is the best scientific out there

Great video! It would be great if you added links to your foam core supplier. Foam Flyers gets too many hits to sort out. Thanks!

This is the best channel on KZfaq by far.

The meat and potatoes of a good introductory aerodynamics class explained clearly in about 12 minutes... well done!! (I could quibble about the flat plate L/D, but only if you want to:) Your presentation style is superbly smooth, clear, and holds attention. I'll recommend your channel to anyone wanting to firm up their understanding of the engineering behind their tinkering.

Explained better and more knowledgeable than a professor!!!!!

very, very nice and good.

This channel is a rare find... subscribed after this video.

You explained why the wind moves through buildings like a wave of water. Thanx

This guy is great. His place reminds me of my ex’s parents house in northern Australia. He also reminds me of her father somewhat too. Anyway very interesting about the blades. Defo on to watch his next video.

Tedious? Fascinating!

I know Bernoulli, I understand Bernoulli, I can explain Bernoulli, I aced all tests involving Bernoulli, how the hell you manage to find an explanation that puts all my Physics professors to shame is beyond me. Awesome work.

The FAA should get you to update chapter 4 of the PHAK. The Coandă effect really helps explain what's going on where Bernoulli leaves off. I really like your lecture-style approach. I can only take so many "exciting" animations rehashing stuff I already know. I'm a grownup, gimme the facts and don't worry about dumbing it down too much.

I thought I knew everything about foils and lift and drag and so on. So I watched this just for entertainment. Now - after watching - I know I failed while thinking to know everything. Thank you for the update! And for the entertainment too. :) Looking forward to next episode. Backdraw: I am so exited after watching every of your footages so I forget sometimes to klick the Thumb-Up. Sorry.

Im really impressed that you can do this in one take. based off your ability to lecture nearly flawlessly my guess is you have to be a great professor. anyways, awesome video as always!

very informative ! thank you !

Love your channel. I wish I'd had a father or mentor of some sort like you.

Thanks for the knowledge, very educational, do you know about hydro propellers?

Great Insight!

Excellent job sir. Explain aerodynamics is complex. Perhaps, it would be convenient to illustrate the four component forces by which sustainability occurs.

The cause-effect temporal superposition spin-spiral probability in/of mass-energy-momentum perceived as gas Thermodynamics goes deeper than the practical purposes approach, but requires a lot of terminology changes and reorientation of thought experiment guessing. Great teaching, I was looking forward to seeing a video on the topic.

Just dropping in to hit like button and toot toot comment. Why? Well, I think you guys do great work. Actually that is an unbelievably understated understatement.

Awesome, thanks. Is wash-out on the tips not a necessary at all? Maybe rounding the tips would silence them a bit? Or does this affect the lift produced?

Thank sir to your explanation..

Awesome video... I've been researching making a propeller for a ultralight that I'm planning to make and the biggest hurdle that I have found is finding the appropriate prop I have found some that I like but they want ridiculous amounts of money.... way more than what you talked about. I need a prop that is about 42in. Looking to produce about 120 kg of thrust. At a max rpm of around 5500rpm. I believe that was the number I came up with to keep it from being super Sonic. I may need to go down in rpm alittle.

Marvelous! You did it again . Loved your explanation and no , is was not to technical, wha t You explained could not be made more simpele without losing necessary depth!

i feel so lucky clicking in this vid today😂💛

Pre-fab foam core ^^

Great video. Thanks. May I ask: is it worth using the halbach array brushless motor for a heavy lift drone?

What’s kind of payload do you get out of drones you have made with these? Designing a heavy lift drone right now for a startup and I’m shooting for anywhere from 15-25lb and if possible even more. Of course payload would depend on how much maneuverability I want as I reach the maximum.

Hey! I’m loving these videos!! How do I send you a PDF document. I ordered some info on DIY props that’s I’d like to share!!! Perhaps you can build and test, I’d love to see your results!!!

Thanks. Good vid.

tapering the wing produces weaker vortices - makes the wing more efficient. so does adding fences to the tips (bottom only)

saw an interesting video on copying the edge of a whale flipper onto a prop, and how it improved performance. In effect the forward edge has "wavy"like crenelations, rather than being a straight edge. The Increased efficiency comes when you incline for lift, and the low spots on the the edge are basically attacking with the same profile as an non-tilted edge, and the high spots are the only ones that suffer the drag of air that has to loop around the leading edge to get to the top,. So you halve the amount of the most resistant air flow

This guy sucked me into another 1/2hr lecture! lol Love to learn though. Great teaching skills.

i thought the tapering has the same goal as changing angle of attack -- the linear speed of the tips is higher, but you need equal lift along the radius.

can this be easily used for a car drone because the vibration problem might not matter.

thank you

Two questions, first, do you know of any readily available (and free) tools that can calculate the appropriate twist for a given set of parameters that will provide the correct angle of incidence to the relative airstream? My second question, is there an aerodynamic benefit to the bottom skin of the airfoil being hotter than the upper surface?

Excellent job explaining some of the design components of airfoils as they pertain to a propeller, but dude, you need to get a handle on that tansy in the yard...

Is there a formula for number of things learned per second on a KZfaq channel vs number of times I don't understand? This channel is top rated :-)

OMG thank you so much... 😊

Thank you for this channel. You are brilliant and have a gift for teaching and more than that making! Id love to see you on the lex Fridman podcast. Or joe rogan.

I want to make props for a nano (230gms AUW) drone I am designing ... Could you please guide/advice/direct me on how to make a CF prop ...especially the Laying of the CF ...you know directions, layering where and how ... Maybe a book I could buy!?

"Building the blades is not that difficult" you say. Dude your a genius. I just wanna see a drone fly out of this - Please the suspense is killing me .....

The audio visual quality has improved significantly since this episode.

I have a question You are trying to run an APU to generate electricity to run multiple electric motors. Would it not be more efficient for your motor to drive all the blades simultaneously and then to have separate pitch control on each blade, like a helicopter collective. You would come back to the control and systems of modern drones but have the power and range of little gas engines. You could then use model helicopter blades, assuming you could find counter rotating pairs. Props could be clocked to eliminate their imbalances

hi, very nice video .. very informative ... can you pls put the link of the foam core cutting service provider (foam flyers)?

Awesome

That thumbnail looks like a scene from a show called Trailer Park Boys :) Great video though mate keep up the good work.

Hello, great movies. I'm from Poland and I really like your movies. You are translating issues from many fields very well. Can you send me a link to this company from Ilinojs which cuts the foam. Thanks and Regards

Would it be worthwhile to experiment with a curved leading edge ie a scimitar propeller as is seen on the AC-130 Hercules ? Also, would a drone that can change its propellor orientation like the Osprey be feasible ? I’m guessing added weight of the tilting mechanism could negate any performance gains. Thanks again for another very informative video ! 👍