Frictionless Hydroplane With Aerodynamic Steering

In today's video we're building a hydroplaning RC boat from 3D printed parts that can skip on water, which results in insane speeds. It's powered by 3 small drone motors in the rear and propellers above to water so that it can even drive on grass. Because of the pontoons the hull raises above the surface of the water and reduces friction greatly.

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Music:
Nysno - Sandra Marteleur
Giants Loom - Adriel Fair
Sea Adventures - Bonnie Grace

[rawdog]

Wow! This took me back about 25 years, where as a kid I built a couple of RC boats that looked exactly like one you've made. Litterally the same! It was a lot slower though... back then I only had access to DC motors. Brushless 3 phase motors and LipO batteries had yet to really enter the RC world. Very nostalgic video, thanks!

[ДелайВсёСам]

I have been following the channel for a long time. Every project deserves respect. Always interesting to see! Well done ! Greetings from Belarus ! ) Давно наблюдаю за каналом. Каждый проект заслуживает уважения. Всегда интересно посмотреьт ! Молодец ! Привет из Беларуси ! )

[gEtar]

It would seem that slow and steady won the race! Great build as always!

[rayRay-pwgz]

The use of modern build technology shown here is really something. Thank you .

[pedrowoolson]

Blown away that the crash didn't destroy the boat... nice one!

[jaknowwho]

Thank you for not making this a two part video! Great job with the boat, and a respectable L. Definitely had them beat in the speed department!

[dkhallal]

Always a joy to see a new creation and video from you. The quality and editing are many notches above others in this genre.

[SixOThree]

Whenever I watch these videos, I get so jealous of this place you live. It's freaking gorgeous. You have trees and access to a beautiful lake. Man you are totally living the dream.

[jordantobins]

If you add fins to each pontoon it will have a pivot point for the turning and will reduce the slip in turns. Great video!

[gordslater]

Just a thought - you used a LOT of expanding foam there.

Once you spray it in, it will expand considerably eventually forming large bubbles if there is little to constrain it, giving a very light result. If you spray a LOT in, the bubbles will be constrained and smaller, but there will be weight (mass) from more foam (and less gas bubble volume)

To achieve the lightest result, you need to gauge just how little you need to spray in so it's mianly bubbles with minimal mass from the foam material itself. For small voids like yours, a surprisingly small amount of foam needs to be injected.

One tip is to leave 10 or 15 seconds between squits into the same cavity - to allow the first squirt to expand out without beings constrained by nearby squirts.

A seconds tip is do it on a warm day or in a warm room, and gently warm the spray can to 30C first (shaking often) in a bowl of warm water before you start. This makes the foam expand much more. Make sure the fuselage/hull components are at 30C too.

If you know beforehand (at the design stage) that you will fill your cavities with foam, design them to be relatively free of obstructions so the foam will expand and flow well. However, for maximum strength, you may wish to deliberately introduce spars for rigidity though then you need to drill more holes and inject small amounts at more positions to ensure good foam filling.

Also be careful with comples internal spars if weight and balance is vitally important - for aircraft for example. If the foam does not flow evenly into all parts it will affect the balance being lighter is areas that the foam does not reach or where it is less dense.

I foam. A lot. It's not always easy haha.

[spaideri]

Drifting hydroplane is something cool I did not expect to see. It's awesome!

[valkabo]

One of the very few channels I literally stop everything to go watch.

[nosmokingnl]

What fun life you have creating these kind of vehicles. And handy to have this lake near-by, winter, summer, its all good

[wally]

Nice Build, this is how people learn! Thanks for sharing.

[wideyxyz]

Wooosh that's fast. Looks cool too. I love the air/water rudder. Id love to see it go over a water ramp and get some air!

[pietlopsa]

Great Job. These things are quite hard to get just right with cg and everything!

[Movieman]

Nice upgrade to the rudder! That RC boat is super fast! Thanks for the video share!

[RomanoPRODUCTION]

the hydroplaner looks very cool simple enough and fast. good job

[VintageCR]

you may not have won the boat race, you certainly won most awsome hydroplane speed built. This is so amazing!

[sleeplessstu]

Here from Lake Washington, home of the iconic hydroplane races of Seattle, I might make one suggestion to your speedy craft. If you want the boat to carry more weight (ie a camera mount near the center of gravity) you might try covering your carbon tubes with an aerodynamic wing to give the hull more lift. This is how the unlimited class hydros carry their big turbines.