Efoil "East Frisian Style" (Early lifting & slow speed -> optimized for waves)


#21

yes, the Graupner Speed 200 ECO runs on 11-19V, nominal is 14.8V. So I decided to try with 5S. I have no experience with these motors, but I hope that if the cooling (by oil) is fine, then it will be ok with 5S.


#22

Looking good. Did you CAD design the foil yourself ?


#23

Hey Chris, did you test things running with 14.8v yet? I’m curious the current draw and results with that motor and ESC?


#24

Mast connection was adapted in order to fit the Slingshot mast:


Also a package from Hobbyking arrived: The controller fits easily into the tube. The tube length can probably be shorter as expected:

Heat transfer to the wall needs to be implemented


#25

Looks nice, hope it works out well for you.
Are you water cooling that with rubber tubing or using the large aluminum tube as a heat sink?
That ESC seems really small at only 120A and using 12AWG wiring. It’s going to run hot, be sure to put a breaker between ESC and Batteries to try and protect batteries if things overheat and meltdown.


#26

Hello! Any news on your project?
Can you share your wing model?