hi guys,
it took me about 2 months to order and get most of the parts I needed for the project, the 3rd month was dedicated for building my efoil board.
after a week I finished with the motor unit and started cutting the board.
unfortunately I also cut and broke my fingers pretty bad…
I didnt want to quit my project and had to finish it before the summer ends so after 5 days I changed my pdesign plans to something very simple and basic(the electronics took me one night work before I went to try it at the lake…). specs: battery: 2 * 14s(58.8v) 30A + 10A charger. esc: Flier 400A Boat motor: sss56114 390kva gearbox: reisenauer chief 4p ,5:1 foil: chinese A1 pod: front pod is printed from abs 100% infill the back of the pod is made of delrin, the shift from stainless steel 304 seals: 2 brown lip seals(up to 200 degrees celsius) propeller: aluminum 7.25/5(14$)
remote: r/c car remote wrapped in nylon(ip 55 maybe ) ) board: just a used junk dead sap I got from a surfing school (after cutting its 240 cm’ long, 80 cm wide, 14 cm’ thickness.
it my first try and there is much more to do to improve it after I learn to surf it.
special thanks to my beautiful daughter for the artistic paint job
The batteries are coated with 0.7 mm fiberglass boards coated with shrink.
It’s Chinese bsm from AliExpress.
I plan to build a watertight box from a perspex or
Just to coat all the battery in several layers of fiber and epoxy glue?
The propeller is cheap aluminum from the store
I reduced it to 14 cm
This did not really work and reached only 14 kph
I am currently using a 18 cm propeller and reaches 29 kph
I’ll try a propeller with Pitch 6 and if that does not work then I’ll try to print a propeller (I do not have a printer right now)
Dies the cells get hot in this configuration ?
And if i may ask you : 390kv with 5:1 it is pretty low with 18650 , the voltage drops to 3.7v fast on load , you said 29km/h , do you know the pitch of this propeller?
) )
