Hydrofoil Canoe

[High Viscosity Liquid]

I'm aware it's not exactly your cup of tea here, but I still felt this would be a good place to try and find some ideas...

The thought is to take a cedar-strip canoe, reinforce the heck out of it, and attach some mounting plates to the underside. I want to make it configurable as an ordinary canoe, as a canoe with a thruster mounted underneath, or with hydrofoils and the thruster.

I bought myself a canoe yesterday. This is the motor I've got my eye on for the project:

Flipsky Brushless Motor 65220 6000W Round With Thread Shaft Integrated ESC Waterproof Underwater Thruster electric boat thruster for ROV RC Boat /Jet boards /Outboard motor / Drive boat jet

65220 Motor Spec: Model: Φ65 x 220 mm Voltage Range: 6-20S Maximum Power: 6000 W Rated Power: 3000 W Rated Current: 60 A @50V Maximum Current: 100A @30V Insulation Current: AC 500V / 1mA / 3s Resistance: 58 mΩ Inductance: 170 μH Three-phase Wire: 3 x 10 AWG (5.5 mm) Power Connector: XT90 Shaft ...

flipsky.net

The reason I came here, is for help designing an active control system for the foils. Hydrofoils act more like aircraft than regular boats, so you folks came to mind.

 

[Piotrsko]

How fast do you have to go to get on step with hydrofoils? Strikes me that canoes don't typically get there. Come to think of it, neither do kayaks although surfing one gets close.

The foils act like aircraft when they are lifting, but there's this canoe to hydrofoils transition thing that has me concerned. You know that your motor is only 8hp max?

 

[High Viscosity Liquid]

How fast do you have to go to get on step with hydrofoils? Strikes me that canoes don't typically get there. Come to think of it, neither do kayaks although surfing one gets close.

The foils act like aircraft when they are lifting, but there's this canoe to hydrofoils transition thing that has me concerned. You know that your motor is only 8hp max?

8hp maximum, yes. It's only rated 4hp continuous draw. The speed needed to get up on foil depends more on the foil design than the canoe... Here's some old footage of a kayak on foil:

 

[Piotrsko]

As we say in aircraft and auto racing: there is no accepted replacement for displacement. My limited playing with 'foils is similar experience, but you still have to go a bit faster than putt putt. That video has that boat boogie-ing

 

[HVB79]

Your best resource is going to be a YouTube channel call RCTestFlight. He recently did something very similar using a surf board.