How This 7000W Motor Was NOT Powerful Enough! 

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.

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.

0:59 Already love the editing!

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 :)

After an eternity later he Is back and he knows that he has a RU-vid channel but I love him.and respect his hard work then any other on RU-vid 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!

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! 🖖😊

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.

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

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

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

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

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

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

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!

Always worth the watch, keep having fun with new ideas

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

This content is so underrated

0:59 proof Tenet is real

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

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.

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

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

such an enjoyment to see you work! love this!

Loved that pond color editing bit!

The way he flinches at 9:15 XD

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.

Look forward every time you post, great content!!

Love your videos & i strongly appreciate ur hardwork

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

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

Best channel on the interwebs, humor is next level

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

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

MAKE A PARAMOTOR OR PROPELLER BACKPACK FOR SKIING OR RIDING SOMETHING

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!

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.

You should make a hydrofoil

"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 ;)

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

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.

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.

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

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

Always enjoyable!

I enjoyed that a lot, thank you :)

Fantastic idea

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

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

Thanks for that masking and color grade tutorial

Neat experiments to be sure! Thank you!

Great video Love to see more

This man needs more subscribers.

Very good your videos RCLifeOn. Got a like.

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

hier wird es nie langweilig ... Danke ;-)

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.

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

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.,.

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

Love the series

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

nice to see u here again :)

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

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

Good experience for sharing 👍👍👍

nice to see new content!

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! ;)

That hippopotamus part was so funny!

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

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

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.

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.

That water looks so clean and blue

Bro pls upload weekly , I'll be here for every video.

I think you are dealing with hull speed limits in both cases. Love the new upload !! "If you aren't using these threaded inserts...." lmao

Looking forward for next video

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.

I really enjoy waching your videos

Interesting videos as always! Love to see how you overcome the issues you encounter during the project. By the way, have you thought about an hydrofoil boat design to use with this motors? Maybe it will work with this motors. Cheers!

at 1 minute the smoke is coming back to the soldering iron????? amazing haha

Good work

I love your videos so much. The editing, sense of humour and expertise on show is wonderful. I can't help but feel in this case you are missing something by ending up with the fan pointing down into the water when it's running hard. I don't know if there is any science there but if you had it in free air so to speak it might run better? Keep up the awesome work, you make me smile from start to finish. Also, can a flat bottom boat actually 'plane'?

At 6:41 i thought you were gonna perform some Alchemy with the way you were listing those parts lol

i love this guys content wish i know about it when it started... shared like sub .... my 2nd fav youtuber ever

Been waiting for the videos now damn 😭👑

Good stuff. Im thinking the issue is similar to that of a boat accelerating and then not trimming the motor out when getting up to speed causing the rear of the boat to drag.

Excellent, interesting and entertaining. What RU-vid is for. Thanks..

hope next video takes twice as long as this one did

not sure how i got here but this was so cool to watch

@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.

The first reminded me of the Grand Tour Episode where Clarkson, Hammond, and May tried to build the fastest boat.