So it works exactly the same way an airplane wing works. Just replace air with water.

I've watched countless YouTube videos both short and long and detailed on how planes fly, and none have been more clear and intuitive than this one. Thanks much!

Very clear and nice explanation. However it is still missing one important piece; how the bumping movement done by the person on top produces the lift.

As a curmudgeon who is highly critical of people who explain fluid mechanical concepts incorrectly, I'm really impressed with how this explanation combines accurate explanations with layperson-friendly concepts. Is there any way you could do a video on how hydrofoils maintain stability in pitch and roll axes? That one still baffles me a bit.

Excellent, intuitive description.  Your analogies are spot on.  As someone with a masters degree in ocean engineering (and more exposure to three dimensional hydrodynamics than I care to remember!) this explanation nicely fills in the gap left in many undergraduate courses about the Bernoulli principle.  “Yes professor, I know that’s what happens to pressure and velocity, but WHY does it happen?” .  Well done, again!  Each of your videos is themselves worthy of a subscription !

Awesome foil explanation! It’s easy to feel how fun foils can be and thanks to you we can understand a bit better what’s going on under the surface!

A aerofoil doesn't deflect water (or air) downwards; that's called flat plate lift.  It generates lower pressure above and higher below, resulting in lift.

Thank you so much first for making it easy to understand and 2nd for choosing the topic.

I mean this just seems so much safer and efficient for boats than traditional open ocean boats.

Hey man, I just wanted to say that was an excellent video. I really appreciate it and the students in my class will have no idea but they’ll understand it much easier. Thank you.!

Thank you so much for this video! My brain disagrees about math being awesome and I did horribly in physics, but your car metaphors and explanations helped immensely!

You explained the balance of vertical forces very clearly. What is hard to understand is the unbalanced forces which propel a Foilscoot forward, even when a rider is not compressing the foil downward.

It's genuinely hard to explain the lift of a foil in a way that's both accessible to a general audience and technically correct. I think of all the videos I've seen trying to do this, this was the best. Well done.

The clearest and best explanation of how a wing works that I ever had ! And I am an engineer and a pilot passionate by physics for a very long time. Putting together the relationship between velocity and pressure differential on a an object in movement was key in the video.
Thanks ! I hope my explanations of how things fly will be clearer now !

That was the best  way i think anyone could have every explained a  hydrofoil. I hope you teach somewhere. Thank you for the insight.

You explained this very very very well. Using that traffic analogy was a golden move!!! Thank you!!

Fantastic! You've saved me for my exam

Omg, ur explanation is so good. It's literally life changing for me.
I was actually a physics major and all my life, I've been misled to believe that the faster speed causes the lesser pressure, which I could never make sense of. And this has tormented me for years. Now I finally get it thanks to your vid.

@07:42 The way Bernoulis principle was taught in school was completely wrong!

i thought that no one could explain that clearly, this video is just perfect!

Awesome video!!