I like that Simon keeps everything in his vids and won't just cut a part that doesn't work out in his favor. Great to see the trial and error and the process from beginning to end.

i can watch simon do this kind of things all day

It's your thrust angle. The fan is pushing the nose of the boat and board down whilst also pushing forward so you have massive friction and never getting up on plane. Print a new mount with the nose of the ducted fan a few degrees down pushing its thrust up and back. Pushing the stern down. Thats all it will take to get up on plane and then that power will show.

Everyone waiting for a new video, while Simon fucks everything up 24/7 and tries very hard to deliver good content. Thank you bro!

you could try and 3D Print Hydrofoils to lift it out the water to reduce the drag.

0:59 Already love the editing!

A tip for the threaded inserts: Push them 90% of the way into the plastic, then push the plastic and threaded insert down onto something flat until the insert is fully inserted. This makes it much easier to have the inserts be flush and aligned with the hole they're going into. It also creates a completely flush mount, and retains the original geometry of the part. They're plenty solid when mounted this way (they pull the plastic out before the interface between the print and the insert fails) and it makes everything look very clean and tidy. The Jubilee 3D Printer project is where I first heard about this method (they called it the 'plate press technique') and I use it any time I need to press an insert into plastic these days.

I like how each step in the process gets this closer and closer to a swamp boat/fan boat.

Awesome work, Simon! Looking forward to the next tries! 😃 Stay safe there with your family! 🖖😊

After an eternity later he Is back and he knows that he has a KZfaq channel but I love him.and respect his hard work then any other on KZfaq keep it up love from Pakistan

Rule #1 with any performance boat... NO round corners, edges. The water follows a curve rather than break away from a sharp edge. It may not still plane with the weight but you're giving it every chance Simon. Love your work and as mentioned, keep the OOPS moments in!

Very enjoyable to watch. It was fascinating using the body board verse the boat.

Make a hydroplane/outrigger! Wanna collab? ;)

Entertaining video like usual Simon, glad you show how to work through your builds! You figured it out, for an airboat you want a planing design instead of a displacement hull, weight was definitely the issue, less your design. BTW you inspired me, I'm scratch building an electric surfboard :)

Always worth the watch, keep having fun with new ideas

Great video, informative AND very entertaining. Happy to wait Simon ,gives me a chance to go over previous vids again.

It's amazing to watch your videos! Keep up the good work !! :) 11:26 Make an E-cart with that motor

The momentum transfer at low speeds for an airscrew is really inefficient, your ducted fan isn’t anywhere near as large as it could be. The high speed of the motor needs to be transferred to slow moving air, and you’d want a very large airscrew for that. But the resulting large prop makes the motor spin slower, which lowers its efficiency, so you might even have to consider gearing. In the water you can use a much smaller screw. If you’re not going to use a water propellor, then I’d act to minimise the friction with the water. A hovercraft would be a conventional example, if you’re ambitious you could make a hydroplaning vessel with automated stability control.

One thing many young folks never realize is even if you fail you gain practical knowledge. The cool thing is once you go through enough of these exercises you begin to develop an intellect then you can take on a new project and hit the design pretty close on the first attempt. Unfortunately this process usually takes many years but the more of these excersises you do the more advanced you will be in your later years and that's when you truly get to experience the satisfaction and reap the rewards.

such an enjoyment to see you work! love this!

U r the most consistent youtuber, jokes aside love the content

This content is so underrated

Love your videos & i strongly appreciate ur hardwork

Loved that pond color editing bit!

U should try some back flaps to reduce the pitch when going faster

that crazy russian hacker impression tho! good videos man, keep up the good work!

Look forward every time you post, great content!!

I could watch these videos all day, even when Simon fails he still makes it entertaining

0:59 proof Tenet is real

You should add a teddy bear or something to make him look like he's surfing/ jetskiing

Most enjoyable! The boat is 'stuck' to the water - no amount of lipo-brushless-mega-watts will change this... Looking forward to the next video!

Best channel on the interwebs, humor is next level

Power on that big boy motor next 😈 Every time you are testing near the propellers I hold my breath 😅

The way he flinches at 9:15 XD

Great video! Looks like you were being held back by hydrodynamic drag, with increased power you also increase that drag so your speed hits a maximum. It's all about getting that body out of the water. If your hull has a lifting effect like a powerboat it might have better results.

Nice project! my input: tape the bottom with some parcel tape. get the trailing and side edges sharp. If thats not working, run it on a gravel road, its a ton of fun.

Seems like water resistance is the limiting factor: time to make a hydrofoil?

You have to minimize the surface touching water to decrease the drag, i recommend you to build a hyrofoil

Just found this channel funny as hell but did open up possibilities for something I’m working on thanks 🙏

I love your videos bro. an I LOVE your humor!

It’s like the old Swedish saying we all know and love; Friskt kopplat, hälften brunnet!

Make a hydrofoil! You'll get less friction from the water dragging on the hull.

One of my favorite channels, in the top five I reckon:)

tack, men blir alltid glad när man kommer in o ser att du släppt en ny video. 10 tummar till dig..

Me: does Simon not have a bathtub for testing floatation and saving time? Simon: I do, but the on location testing is way cooler. Me: agreed. Keep it up.

You should make a hydrofoil

8:15 I've been to the Maldives once and when I saw their water color I said that if I saw that at home, I'd start looking for the leaking chemicals plant up river Your video shows that rather well

I am excited to see the bigger motor setup! I like the propeller rather than the turbo fan.

MAKE A PARAMOTOR OR PROPELLER BACKPACK FOR SKIING OR RIDING SOMETHING

"The rudder is farther down than expected"... Yeah I remember my first time with a girl

I love this idea for these series! Amazing! I want to see that massive motor in a 1:10 dragster ;)

1:00 love the way your soldering iron recycles the smoke like that LOL ;)

In last videos you were displacing water, but this time just air. Thus, you got low speeds and acceleration. Displacing water creates huge force in comparison to displacing air as water has higher mass and force is mass multiplied by acceleration. Although the acceleration would be little low but the decrease in acceleration will be far less than increase in mass when you switch from displacing air to water.

Always enjoyable!

Excited for the coming projects, I think a kayak, electric scooter or giant flywheel!

Thanks for that masking and color grade tutorial

Yes hydrofoils as proposed below would look like a nice follow up Simon. Always nice to watch your videos 👍

Very good your videos RCLifeOn. Got a like.

Dying the water blew my mind a bit. Nice vid, you are some of today's finest entertainment

Waw,so impressive.I've learn a lot here in

This man needs more subscribers.

Neat experiments to be sure! Thank you!

Fantastic idea

This is why the Florida airboats have huge powerful motors on top of a light weight hulls. Looking forward to the next project.

I enjoyed that a lot, thank you :)

i kinda wish that you would upload more. i love the videos. what can i say they have really good content. i do miss the 3d printing ones. but progression is natural. keep making more vids.,.

Great video Love to see more

The thing that blew up at 2:30 was the resistor in the Anti-spark plug. I had that happen to me before

When you started editing the water to make it seem more blue I lost it😂

Good experience for sharing 👍👍👍

nice to see new content!

That water looks so clean and blue

A V hull works great if you can get up on plane. Maybe use trims or even a hydrofoil on the rudder to help. The flat board had way too much friction.

One person MINI Boat! Cmon! That would be awesome for fan :)

Love the series

For the 20kW one that’s for sure enough power to keep you flying on a paraglider/Paramotor. You know what to do 🥳

nice to see u here again :)

Ive had a little experience of building air boats on those body boards and I found that the faster you go the more the nylon cover on the board sags at the rear because it fills with water which makes the cover sag at the rear end , you will have to remove the cover if you want to go faster and maybe even waterproof the polystyrene board somehow with light balsa wood and seal it with cellulose dope.

You should try to give a few degrees of an angle to the motor axis, so when the boat rises its nose, propeller axis stays close to horizontal. Also this leads the propeller axis pass closer to the gravitational center of the boat, so the force will be lost less as rotational force.

Hey Simon, Your hull needs some steps, like speedboats. If u try to to pusch a normal hull at speed though water it acts a bit like a wing and sucks itself to the water. Those steps, 1-3, just google it, help to break the surface tension and enable planing. Switching to the body board actually made it worse in a way, du to a much lager wetted surface.

Hey Simon add a foil wing to it it might lift the whole thing and will give you more speed because of lower friction with water. Would be cool to watch you building a wingfoil 👍

Been waiting for the videos now damn 😭👑

@RcLifeOn The issue you had in the start was likely to do with the spark-free XT90 connector, they have a resistor in the first part of the connector, so you have to connect it properly in order for the power to not go through the resistor when using high power. Also the issue with the first fan not moving the boat fast is that the motor is on top of the boat, meaning the front of the boat is pitched into the water by the force of the motor. This increases resistance more and more until the motor essentially works against itself. The fix would be to angle the motor upwards more.

Nice one, Dude! Try a bellmouth in front of the ducted fan and a nozzle at the end that has around 90% of the (open) area of the engine.

FYSA. The board is creating suction on the water under power. Any amount of concave profile can do this. Happens with old boat hulls as well.

Such beautiful blue waters in Sweden, I wish I was there!

Excellent, interesting and entertaining. What KZfaq is for. Thanks..

Simon.. as usually great ideas... What about to build a boat with foils? It will be fast.. and funnyy! :) I know you can do it! Make this video a present for my birthday! ;)

Its been years since ive seen such a clean build plate on my printers haha

Looking forward for next video

I really enjoy waching your videos

Fun video. Maybe the ducted fan can be used with a hydrofoil? If you can get that up to planing speed. With the fan you won't need the a deep propeller or rudder.

Some XT90 connectors have antispark resistor, plugging the connector half way means that the current goes through that resistor. The connector has to be plugged in all the way

Great project, If i were building a hull to go fast, i would eliminate some of the drag of the hull with steps (look up stepped hull) that will help to eliminate the hydrodynamic drag of your hull. also if you angle the motor up (propellor facing up slightly) you will modify your angle of attack for the hull. this will give you bow lift, eliminate some drag, and help you up on a plane. this will also help you bow submerge less saving your electronics. If you want to go off the reservation completely, build some hydrofoils, eliminate hull drag by several orders of magnitude

Loved that you edit the lake water lol 🤣🤣🤣🤣

Good work

that google search killed me lol! and the looking at the camera as if you're waiting for some kind of acknowledgement from it

Introduce some pitch control by setting up a horizontal control surface (eleavator), or even better a motor mount with variable pitch, so you can control the propellers angle of attack. Both remote controlled.

Hey , im using same 3d model for the boat, added 1 layer of resin to make it water tight , but instead of the propeller ive 3d printed a water jet turbine and the boat startet to glide very good , with a amazing top speed. ive used a old 2200 kv motor from a drone. with 4s and 6s battery.

That hippopotamus part was so funny!