my name is Michael and i am coming from the swabian alb in south germany.
I started around one year ago with foiling. Main goal was to build an efoil but also to kitefoil and maybe pumpfoil. We realized pretty early that its not so easy to foil. So we trained a lot on a wakewinch.
As we have not so many deep water around here i decided some uncommon design goals:
- Equipment multiusable for other Foilsports as much as possible.
- Equipment easy to transport
- Mechanical outputpower should be under 3 HP (~2,2kw) → i dont need a labeling in Germany
- able to drive slow and turn tight.
- easy to build
My main Hobby is Paragliding so spring and summer is kind of blocked.
So i usually foil in autumn and winter.
Slowely my setup starts to work. So i decided to give something back to this awesome community who saved me a lot of time and money. And share my build with you:
The Engine is a 6384 with addons from this Thread: https://foil.zone/t/direct-drive-outrunner-with-direct-water-cooling Thx to @PowerGlider for this genius ideas.
Planned Addons there are the Igus glass bearings and at the end i gonna try a friction bearing from Igus. I dont know how much power it gonna cost me but at least i would like to try.
As a Board i use the small 47l Gong Hipe Inflateble.
The Motor is mounted to the Mast of my pretty big foil: Größere L hydrofoil Reine 3K Carbon Flügel + Aluminium rumpf mast platte Hydrofoil Folien für SUP Surf Folie|Surfing| - AliExpress
(I would not buy it again. Because its not as cheap as the cheap big Gong foils. And Gong would be way easyer and cheaper to get spare parts. So if anyone knows what foil it clones. Pls give me a hint)
The cables of the motor are going trough the mast but exit it directly under the mounting plate. Then the cabeling hangs freely around the board and enter a watertight box on the nose of the board. The watertight box contains a 120A YEP Marine ESC, a maytech reciever, a 36V → 5V DCDC Converter and my 10S4P 36V 11Ah Liion Battery (Currently: screwdriver packs).
As a Prop i use the 156 0.38 1.08 15 from @V_S. Having the right parameters for the prop was a real keypoint in my current build. It gave me more power, higher efficency and much longer runtimes. Thx Volker!
This Setup runs actually around 20min with one Battery pack. With an speed of 13-25km/h and a consumtion of around 60-70Wh/km.
Currently i am working on a folding prop version with the wing specs of @V_S printed in PETG. The first prototype works promising but i have a more folding and more robust version thats gonna tested as fast as possible. If that one works i gonna share the .stl files here.
Working Proto beside Volkers design:
Next Proto that gets tested in the next days:
Here is a Video of my current Build: