Electric Hydrofoil (EFoil)

Function: To build a surfing hydrofoil capable of moving at over 40 knots for over an hour under it’s own power

Inspiration: I have had a surfing Hydrofoil in my garage for almost 3 years now. It has been sitting there, tempting me, and I finally gave in and decided to do something with it. After a bit of research, I learned that it was possible to electrify it.

Methods: In the early stages of the build. I have ordered a custom 72V 60AH Li-Ion Battery, and have received the custom ESC and 10kw 120Kv motor. Both of these have been waterproofed with water cooling lines attached, but until I have finished the CNC I cannot make much progress as I have no skill with surfboard shaping. My goal is to carve custom foam board layers, and the fiberglass them together to make the final board.

Outcome: TBD

Failures and challenges:

• The original board I was going to use is much too small. It cannot hold the battery, and there is no chance I will be able to fit the ESC and other sensitive equipment inside of the board, as it is only 3” thick. My final custom board design is over 8” thick.