Build an electric hydrofoil with a foldable body.

October 17, 2025

Electric hydrofoil with foldable board body.
Has anyone ever built one?

Let's give it a try.
Electric hydrofoil players will all encounter a problem: the board body is very long, with most of them measuring between 1.5 -1.8 meters in length, except for competitive boards. The large size poses challenges for travel, entertainment, and transportation.


Therefore, is it possible to adopt a folding design to significantly reduce its size, allowing it to be easily placed into the trunk of everyday family cars, including common sedans and urban SUVs? Additionally, the panel should be capable of quick folding and unfolding. The final determined folding dimensions of the panel are: L90CM*W66CM*H31CM.


In addition to reducing size, we must also control the weight of the panel body; the panel body will be constructed using EPS and carbon fiber cladding. The load-bearing structural components will be made of aluminum alloy and 316 stainless steel.


Of course, cost control is also the most crucial aspect. Most of the construction will be done by the challenger themselves. I believe it will be quite interesting.


The ultimate goal is to build a fully structured electric hydrofoil with a foldable board, weighing less than 38KG, equipped with a battery capacity of 55AH, and capable of reaching a maximum speed of approximately 40KM.


More information is available, and it is being updated.
Let's get started .....

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