3D Printed Hydrofoil with Sonar

[joejenkins]

assulting your robot in the water is the equivalent to boston dynamics pushing their robots onto the ground over and over again haha

[MaxWithTheSax]

Can't decide if I am more impressed with the performance of the hydrofoil or the fact that the radiomaster survived.

[linecraftman]

10:21 "Hope this remote is waterproof" says Daniel, as water sloshes around in the transparent casing lmao

[NicholasRehm]

Sick dude! I was surprised it could do those little jumps—you’ve got it dialed in so well

[CJ-won]

half the time i don't know what hes talking about, but 100% of the time i enjoy his vids.

[MalteSpieltYT]

RCtestflight video for dinner, doesn't get better than that!

[gusmcguire]

From a wing-foiler and kite-foiler:
That rear stabilizer looks absolutely huge. Maybe over half the area of the wing?
We usually ride stabilizers around 1/6 to 1/8 of the area of the front wing, and that’s usually plenty of area for passive stabilization. You could probably get away with even less given you have active stabilization.
All that extra stabilizer and the fuselage you need to support it really kills your efficiency, and even more so once you scale it up and start going faster.

[Christian-czbu]

The wake from that on the glass is mesmerizing.

[technobabble_]

I think you've really got something going here. This is a very exciting project. I also really enjoyed watching you remove and add different aspects of the design to see their effect and whether they're needed. I know simplicity is key to engineering but so is speed, fun, and responsiveness. I think if you get all of it to work full scale you'll have something extremely fun and easy to ride.

[StabilisingGlobalTemperature]

I have been making hydrofoil blades. 3D print hollow with zero infill. Fill with expanding foam. It is almost impossible to make them waterproof, so it is best to have consistent bouyancy by filling with foam. Rather than some filling with water. Or partly filling with water.

[onquarter]

FYI- most hydrofoils place the mast behind the wing (and therefore behind the COG) so the mast acts like a vertical stabilizer. You can get some yaw stability for free by doing this. It would act just like your current rear vertical stabilizer, but with no extra drag.

[dreamburn]

This is absolutely amazing. This is probably my favorite invention of yours yet.

[WindCatcherRC]

Thank you for the mention! We really appreciate your support.
This is a really cool project. Looking forward to the next episode.

[Calliber]

I just noticed when your airfoil hit aerated water it lost some stability as the props lost thrust. If you're using speed regulators in water the speed of the prop isn't directly proportional to thrust when the water density varies. If you can switch from motor speed regulation to motor power regulation you might see even better results. Motor power is speed times torque or electrical current. We had to do this to have an oil rig supply ship maintain a position in the ocean next to an oil rig. If the water got choppy the water density varied a lot with time as waves turned up the water and speed regulation just didn't work well.

[FarmerFpv]

You spoil us with the best videos on YouTube. I could watch you build and engineer stuff all day. Something calming about your videos. Don't ever change. This build is EPIC!

[NoNameNeeeded]

The secret to ridiculously fast printing yet preserving quality and dimensional accuracy
is VERY SLOW outer wall, print outer walls first in exclusive mode.
Crank the speed on inner walls and infill.
Sick project man!!

[trenthenkels]

The best channel on here, always waiting on a new vid

[johnarizona]

Dude, cool build! Remember that Brennen Monorail train built back in the day? The inventor used gyroscopes to stabilise and it which made the train lean into the turn. That would totally stabilise your platform and solve your issues.

[FoilFanatic]

So glad you're making videos showcasing hydrofoils. The sport is evolving fast and it's only getting better!

[PlaneAwesome]

The fit and finish of this assembly is just awesome. Integrated hinges, wire routing, carbon spars... Hell yeah!