Can a HYDROFOIL Fly like an Airplane???
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- เผยแพร่เมื่อ 27 ก.พ. 2022
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Hydrofoil Pt. 1: • R/C Hydrofoil with Son...
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Came for the engineering, stayed for the one-off music as always!
it's crackin me up!
I want the music to expand. I was watching Peter Sripols last video and I was wishing it had a song from the only person I have every crowdfunded.
First read this and had no clue what he was talking about.
Then heard the song....
Want to see a real life hydrofoil boat?
th-cam.com/video/7SRG6Vg6Hzk/w-d-xo.html
This is one in Japan.
It's a VERY good... Don't even know what to call it - Parody? Reference? Whatever, it's riffing on Bo Burnham's song Jeff Bezos
Can we all take more to appreciate the work this man is doing to entertain and educate us. Thank you very much!
And the songs. Just awesome
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I appreciate his hard work. I am able to sleep at night because he figures it all out for us.
Also mine
Exactly!! If this dude was my teacher I'd have gone to school more. It's fricken genius how he's educating us about techo science when we think we're just watching him playing with his (expletives deleted) cool toys.
Actually applauded my screen with that first test sail under automated trim control. Just beautiful. Gods I would love to see that system on a full sized sailing dinghy. Keep sail control and tiller in the hands of the skipper and let the system manage attitude/altitude. Thank you for all of your incredibly original work.
I believe the tf35 are computer driven
@@thomas3793 Thank you so much for sending. It is definitely a sexy craft. But some part of me wants a smaller hack job using accessible technology. Like a little modified hobie cat. Or frankly, even something like a laser with outrigger hulls. Can you imagine being able to cut the waves in something tiny and ludicrous?
Please keep me in the loop if you ever plan to do so.
Dingys with hydrofoils like the moth, have a mechanical system controlling the trim of the main foil. A wand which bounces along the water pulls a wire that changes the angle on the main flap. You then control the rear elevator with a hand twist grip.
In other hydrofoils, there is a newish hydrofoil surfboard with electrically controlled trim control. There’s a video of a dog riding it 🤣
@@AliBFPV Thank you so much for referencing these! It’s interesting to wonder whether that wand, by tracing the contours of rough water would cause similar problems to the sonar tracing waves. You’d have to mechanically smooth the speed at which it shifts versus doing it using digital filtering.
The Hydrofoil song is great like the previous tunes you have created and added, thank you. This sets you apart along with your capabilities.
Solid song, for anyone unaware it's a cover of Bo Burnham's Bezos.
@@RobertKennard I hear the tune, but the wording is all different from the Bezos song. So is this still considered a "Cover" song.
Christopher Colm I wasn’t really sure what to call it. Maybe an homage. But certainly not a fully original piece. Bo Burnham also has a song Bezo 2. Which is less similar to hydrofoil.
@@RobertKennard Either way it certainly is a catchy tune, and cool that you are aware of this other artist Bo Burnham. Thanks for the nice introduction.
Want to see a real life hydrofoil boat?
th-cam.com/video/7SRG6Vg6Hzk/w-d-xo.html
This is one in Japan.
Some racing sailboats have something called a kelp cutter - it's a razor that can move up and down a groove on the front edge of the keel to cut any sea-weed. That could be an option for you.
"Sonar is notorious for being noisy"
You don't say... lol
Man, there's some serious research going on here... would love to see this find it's way into something scaled up. All topped of with what is quite possibly the greatest song in TH-cam history.
Americas cup is about as scaled up as this tech gets
Want to see a real life hydrofoil boat?
th-cam.com/video/7SRG6Vg6Hzk/w-d-xo.html
This is one in Japan.
You realize he’s just scaling things down?
TH-cam was very quick to recommend this to me 👀
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can we give him credit for the song thats cool keep it up and love to see you got it fixed
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Came for the amazing build's...stayed for the epic tunes!
If you liked the song, check out Bo Burnham's stuff, since it's an homage to his Jeff Bezos song from his Inside special.
When the rig was upended in the water, it looked like it might be signifigantly tail heavy (center of gravity aft of center of lift). Borrowing from aeronautical practice, for a plane to be auto-stable in pitch, the CG needs to be slightly forward of the CL, with the tailplane pushing down to balance the nose weight. Ergo, self-stability in pitch. If the CG is too far aft, the pilot is tasked with horsing the elevator to maintain pitch. No doubt you know all this already, but I just thought it might be worthwhile to experiment with CG location.
You could try to add water level sensors to the pylons for the wings. That should be way more accurate than the sonar and allow for higher resolution.
It would be cool to build a boat that goes from normal boat to hydrofoil to ground effect plane
That sure will be their next project …
to regular plane to ram to scram plane. To spaceplane, to rocket.
@@frog8220 I mean the first three are already in development in Britain. They're working on a plane that goes from regular plane to scram plane to space plane. And ironically at the end it uses rocket engines
Great job Daniel!
I always look forward to Colin’s take😎
You stated that the vessel struggled going down-wind - I'd assume that waves pushing from behind would effectively reduce the net velocity vector which would then reduce the lift produced. You'd need excess thrust to account for down-wind effects to stay relatively levelled. You also mentioned that sea-weed would produce drag and choppy waters can be harder to navigate - I think only scale would be able to reduce the impact of these effects. Regardless, great project and ideas, really excited to have seen how an automated hydrofoil vessel navigates this effectively!
As a novice wing foiler... if you can get the hydrofoil in the correct part of the wave you can generate much greater lift. Generally up on the leading edge of the wave. Conversely, the trailing edge can decrease your lift.
@@DanielBallinger I understand what you mean - you do gain kinetic energy when you "ride" the wave & it'll both propel you forward whilst generating more lift. However, when the waves are relatively small and the waters turbulent, it'll be hard to synchronize with riding the wave as can be seen at 7:47. As a consequence you'll tend to fly and then drop your nose cyclically.
Want to see a real life hydrofoil boat?
th-cam.com/video/7SRG6Vg6Hzk/w-d-xo.html
This is one in Japan.
You could add razor blades to cut sea weeds !
That's will be METAL !!!!!
God dam spambot they're everywhere
thanks for your 18+ spam. Again, I have another new YT Spambots Content User: Inofarr for reporting this bot.
@@dinhtuan752 can you report my wife for not playing with my ass?
This might be difficult to implement but maybe on a larger scale: for clearing seaweed, incorporate rollers on the leading edges of sponsons and wings, and when the motor amperage vs. ground speed skews too high, briefly power all the leading edge rollers to just roll off any weed that has wrapped around.
I think this would make it worse, as there would be more spaces for weeds to catch. A simple wiper that's mostly covered might work, but again introduces more snag points.
Or make the leading edge razor sharp.
Design sponsons to turn 360 degrees. When necessary, slow speed and slowly turn them until clear. Maybe one at a time.
What's wrong with reverse?
Seems a bit dangerours, but my first idea was to attach razor-blades to the leading edge.
LMAO, the songs are just getting better and better! Love it! Oh also the aircraft is pretty preeetttyy cool! :D
This man doesn’t only make awesome rc vehicles but he has also written an amazing song!
Man, I love Ardupilot. Such a great and easy-to-use software.
Thanks for inspiring me to build my own long-range random RC creations and UAVs.
Where would you fly them?
Dope Hydrofoil song dude
this is a bot.
@@dinhtuan752 What? Naah, Anna seems to be a very special girl!
He's(?) a light day with music flowing extravagantly and fun, I mean Anna seems to be a very inspiring princess star person and we all need to understand it.
Anyhow, watch her bootyclap some whipped cream in the above link LOL.
I mean the bot, pls search for *"youtube spambots."*
love seeing the videos man! always great quality! keep up the good work!
Omg jack o wack long time
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I've been a subscriber since 150 subscribers. I'm so happy to see how far you've come man. Keep up the great work!
I remember watching your videos as a kid, and the one I always came back to was the modifications to the Walmart RC car. Good times
I'd love to see some efficiency test in hydrofoil mode vs normal floating mode
Add in normal flight and ground effect too. Could prove to be a great experiment on the most energy-efficient mode of transportation over water
Hydrofoil efficient for low medium speed, planning efficient for high speed
@@Toast934 Indeed. I would also think hydrofoils are less efficient on a "light" vehicle relatively ( Or rather, the low weight makes it even more sensitive for speed/efficiency?). I wonder if this vehicle wouldnt be more efficient without the hydrofoils at anything but very, very low speeds considering its low weight with a correctly designed planing hull. Thats not to say its wasted, this is a very fun and good engineering excercise.
I have heard hydrofoil boats are almost 80% more efficient than regular boats. Source: Candela; a hydrofoil company, so not too reliable lol
I think under the 30ft size without a need for excessive top end speed, foils are fantastic. However in my own experience in playing with boats if you care about top end speed, you can never get away from the foil drag in the water. Whereas a planing hull will eventually outperform a foil, at around the 30 knot mark. The americas cup boats seem to be an exception to this, however they have immense sail carrying power to push through the relatively small foils they carry. The cup has had issues of making their chase boats (both media and rescue ) go fast enough to keep up.
7:45 I'd guess because, while its airspeed is the same, its water speed is much slower
so it can't get the same lift from the same throttle input
you also have air-driven propellers so it is indeed loosing thrust by going in the same direction
At 4:05 when the song starts.... it's just pure gold my dude, great video!!👍👍👍
The level of ingenuity is amazing. So cool to see the development process. And definitely stayed for the rctestflight bops
I think that the seaweed could be cleared by having a thin "finger" extending in front of the riser from the hydrofoil that was on a freely rotating bearing, (so that it simply rotates out of the way to release the seaweed behind the foil.) The engineering challenge is keeping the finger in front of the foil, most of the time. (I thought about having three fingers and hope that it would passively settle with two dragging behind to keep the third in front of the foil.
Rather than height, you could add a depth sensor to each of the risers, (tube that is open at the bottom that reads pressure - as the vessel sinks the pressure increases - this would isolate measurement from the water surface and also have passive dampening.)
Your depth sensor idea would be susceptible to waves. You don't want that.
I imagine the weed would just stick to the finger and get wrapped around the riser.
Want to see a real life hydrofoil boat?
th-cam.com/video/7SRG6Vg6Hzk/w-d-xo.html
This is one in Japan.
I love the song
Man. I love your videos. I always forget about the songs until they show up. I'm gonna put it on my list to buy that record. You guys are great. Thanks for all of this.
It's free
@rctestflight the rough water test is pretty impressive. It looks like the foils leave the water in the vally of the wave sometimes causing the nose to drop with no more lift. driving upwind vs downwind changes the frequency of waves passing the vehicle by a lot when the boat travels around wave speed. differences between up- and downwind could be in the reading of the sonar or behavior of the flight controller. LOVE YOUR WORK!
Could you reduce sensor twitchiness by combining sonar through a low pass filter with z axis acceleration double integrated through a high-pass filter?
Waiting for the Spotify album to drop ⏰
JK I BOUGHT THE ALBUM ON BANDCAMP
Little boat Big journey is a #1 Hit song for sure
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I love the brilliant people with the smallest budget. You get the most ingenious creations!
I think your catchy and creative songs are becoming my favorite part of your videos
Now hear me out, I’m not an engineer and my RC experience is limited. BUT adding a function on the ESC with a “self cleaning” system, say like some razor blades on each upright that cycle them selves when the posts get gunked up with seaweed. Razor blade (or whatever it may be) cycles itself down the posts and cuts/pushes the seaweed off. I imagine with there being resistance on the seaweed through the water a blade would cut threw it pretty easy.
Ngl the song for this one actually slaps.
Freaking bop my guy.
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@@dinhtuan752 I know right it’s like every time I comment on anything
reporter
@@dinhtuan752 thanks idk why I never thought to report them
I use this application on my laptop.
I remember seeing (and hearing!) the Boeing 929 coming out of Renton, north up the lake. Pretty rad machine!
You are blessed to have a mate like Colin.
Idea: long range hydrofoil mission with automatic seaweed removing capability
Maybe something like a wire that normally sits at the front of the legs to catch the weeds and can be moved to discard them
maybe make the arm holdy things angled so it just sweeps them down
@@crackedemerald4930 I was thinking that wouldn't work because the hydrofoils have a T point for the weeds to get stuck. But a hydrofoil like the IMOCA 60 without that T junction could be swept back to achieve this! Also you could achieve a tighter turn rate with the IMOCA design at is gives a righting force.
@@PuppyKat404 it could have a little lip where every stucked weed slips off downward
@@crackedemerald4930 - J-foils can be shaped to reduce the problem of catching flotsam with continuous aft sweep- probably not perfect..
(pitch control on a blended J-foil involve tilting the whole foil) - a J-foil can also be designed with different regions optimised for lift at different speeds - including supercavitating tips and inherent height limiting - sudden foil ventilation is bad.
The music!!😂 I can’t stop laughing!!
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Super cool video with surprisingly stable results; great work! Colin also rolls in with another absolute banger as usual.
absolutely brilliant, your videos make me smile. Keep going with the great work, cheers, Nigel
That Bo Burnham Jeffrey Bezos cover slaps.
Could have given credits tot je original song though...
@@SirWilliamification Meh. Parody is fair use.
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Loved this. I'm thinking if Nicola Tesla had Colin's music to highlight his experiments, the world would be a different place today.
Came here to say that Colin's music has launched an already amazing channel into pure legend. Hydrofoil BUMPS!!!
I've got a hypothesis why it's harder to go downwind:
The top layer of water gets dragged along by the wind a bit, creating a current on the top layer, but only 10 cm deep. This means the (airspeed-->) waterspeed is higher when you descend, meaning more lift. More lift + adjustments by the computer = too much lift
Regarding the seaweed problem, attach razors to the leading edges. That should cut through most seaweed, and maybe even fishing line.
Addictive tunes ¯\(◉‿◉)/¯
this is a bot.
A friend of mine built one of these very similar to yours about 15 years ago, except his had small forward outriggers that stayed in the water and linked mechanically to the front hydrofoils to keep the ride height consistent.
You make me miss Washington so much, I moved away and its nice getting to see the views of home on top of the hydrofoil
Bro! So cool. I just noticed Mount Rainier and I was like OK cool… he lives in Washington. And then that shot of the pusher RC plane in the desert environment… WTF!!!! That is Sentinel Peak in the Saddle Mountains in Eastern WA. I live only 10 minutes away. Small world 😂
I’m a mechanical engineer who works at hydroelectric dams in the area. Thanks for the inspirational and informational videos! WA represent 👊
Your prototype represent the potential to forever change the naval travel experience for everyone! Brilliant
The above and beyond song crafting really puts the cherrys on these technologically marvelous cakes.
The independent range sensors are also creating roll oscillation. As one increases height, it dips the opposite side.
Please Daniel release the official song on spotify!!! ITS BANGER
Hello you can check the original from Bo Burnham, title is Jeff Bezos.
Wow, fantastic project 👍
Thanks for sharing your experience with all of us 👍😀
another incredible project and can i just say i REALLY appreciate the music too! bravo!
The song is just so good it's over shadowing your hard work.
There were some beautiful shots of that beast - and loved that song haha - so glad I found your channel
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Amazing work as always! Very impressive and entertaining results.
For your next boat project, you should consider attempting an autonomous sailboat mission. Put that wind to work for you!
The Colin Fox ad has a definite Strongbad vibe to it.
10:14 COLIN FOX OMG!!! Low key his biggest fan. You are very lucky to have such a talent at your disposal. (Also tell Colin I miss him). Great Video!
Thank you to rctestflight for posting this video!
"Sonar is notorious for being noisy" is such a great line
That. Is amazing. Looks so freaky moving through the water. Cool, man!
Not sure which was more epic, the foil or the dude in gold pants twerking in the bed of pickup truck.
You need to intersperse a bunch of guys in pastel parachute pants and new wave haircuts with the hydrofoil shots during the music to get the real '80's Euro-pop vibe.
So cool! You mentioned problems with it going downwind, I think this is because it then "stays in the wave" and sort of surfs down it, rather than going through the waves. I presume when going through the waves, the bumps are not large enough to throw off the sonar long enough to cause issues
Seeing the footage cut in from the Ekranoplan 2 and solar glider, along with the sunset shots towards the end of this video made me realise that you have the best B-roll (A-roll?) in the game. I've been watching your channel for a long time but it just never occurred to me because you have a very low key vibe. I guess that based on your job and wealth of experience that it makes sense you would have good footage and particularly good drone footage but I just wanted to give credit where it's due!
Pretty sure this was my first video from you. I was digging the video, then the music started. Honestly, it was amazing and very unexpected.
Building little gas motor cars as a kid, some were three wheeled. I quickly learned that steering from the back with one wheel was unstable. The car wanted to flip around and tricycle. You would get the same effect riding a tricycle backwards. Now you see three wheel motor cycles (and even EV's). But the "all" steer with the two front wheels. I suspect you would get better directional stability if you steered with the front two foils and left the rear foil fixed.
I lose it every time you just perfectly segway into a musical number related to the video. Top tier content man, keep it up!
I bet by November Daniel will have a super-cavitating self navigating rc sub drone. Seriously, always fantastic engineering.
Downwind solution >>> RETRACTABLE SPINNAKER!! ☺️👍🏼 (This vid makes me so happy!! Nice work!)
Interesting: I am working on a hypothetical design for a foiling boat and have settled on hydrostatic pressure sensors. I have seen physical feedback levers that skid over the water, this, and manual control in foiling boats. Your boat’s small scale doesn’t help the feedback, mechanical or otherwise, especially given the short time interval. It is interesting to see so many different solutions to similar problems. :)
I was really enjoying the video.. Then the song, and wow, amazing talent! In all seriousness, definitely some of the best TH-cam content.
Here’s another idea- resistance measurement sensors on each of the 3 legs. Basically two open terminals an exact distance from each other (1/4”?) repeated up each leg every inch or so. Apply voltage (low amp, IIRC), read resistance values, and calibrate to tell the difference between a body of water and latent surface water or water spray. And then, of course, sensor-fusion that data with your sonar to minimize errors from either sensor type (basic sensor fusion: average the result values together; slightly more advanced sensor fusion: look at the difference between the conclusion of each type of sensors and throw out values that don’t make sense temporally, and across sensors; advanced sensor fusion: a bunch of calculus and statistics, I guess).
okay that song remake was the highlight of this video, dying of laughter over here
Music was the cake in the video
The engineering was the cherry on top
It's another great video from you ❤️
Thanks for the great videos
Regards from Denmark 🇩🇰
Always happy when I see you have uploaded a new video!
Your amazing channel is what pushes me through COVID
Great job. That was some serious science. Millions were spent to cover the same ground.
Insane work again! I guess, if you go downwind, your hydrofoil will move with the water and this creates less lift.
Fantastic! Maybe a ground effect, hydrofoil hybrid is the magic sauce. I wonder if the front mounted propellers are causing some issues, it seems to me that a pusher motor from the rear would apply force in a more better way. Imagine pulling the craft with a string as opposed to pushing it with a pole. I build docks and when I measure choppy water I hold my tape so the tip is submerged for half the time, you can get surprisingly accurate measurements with this method.
WOW! You're right across from Seattle. Love the content. SUBSCRIBED!
That song made my day, I loved it, big Flight of the Concords vibes
Your funky beats are low-key addicting
That hydrofoil song definitely had a twentytrucks vibe. love it.
Love the footage, the chopsticks, that beautiful mountain and the groovy jam! 😂
wow, dude, the songs that you have in your videos are pretty cool, and the research that you are doing in your models is amazing, congrats, i suscribe now 😃
The downwind issue is because of props.
Props push air behind them and pull forward, Heavy downwind counteracts that.
You are talking about the sacale of a small cessna trying to take off in a hurricane blowing at it from behind while having the brakes on.
-Overcome water resistance, while trying to shovel air back (and itself forward)
-while the air around it tries the opposite
Cheers from Seattle! It’s great to see this awesome innovation on my home town lake! Go baker
The music is, as always, 10/10 perfection.
Supercool to get such a good stability from this small of a vessel. I'm thinking a 3m wide and 6m long vessel and this system should work marvelous!
This is SOOO cool! Now you need to use the same system on a hydrofoil, rideable kayak.
"Hydro-Hydrofoil" will officially be stuck in my head all day, I love it
Super cool!! The first thing I'm thinking about when I see it floating is that you could potentially have an integrated water level sensor in each "foil arm". You know these cheap 10-15cm sensors used to monitor small water tanks. I don't know if they have a good resolution but it might be better than 5 data points..!
combine it with a few sonar sensors and weight them and you might get a more consistent average. You could probably measure the water roughness to some degree too.