After a first project quite efoil with 65161 and pelican suitcase, I embarked on a foil drive assist project thanks to the great inspirations of the DIY forum.
First tests on a gong hipe 5.5 110L, and a 6S 20A lipo, it works but you need the help of waves or wind to fly (67kg, big gong fluid xxlt front wing). Looking a bit at the FB page of the commercial foil drive assist, I saw crazy people using 15L boards, and I said to myself why not, and I pulled out my old kite foil board (125CM long, 16.9L ), and I managed to take off en efoil it with only one 6S lipo 20A, one simple fly color 150 A ESC, a simple 3D printed propeller, and it was a lot of fun water to learn to pump. (impossible on gong hipe 5.5 110L, too big and heavy).
Next test in the waves with this mini board for surfing waves with 17l below, it will be a lot more comfortable than with 110L.
I am building a second foil drive assist box in 2x4S 8A and flipsky mini 6.7 ESC in a lighter and smaller box.
I think I have found a simple and low cost way to make your DIY foil drive assist, without having to struggle to make your lithium ion battery.
Yes i am still not sure about best method for radio signal.
foilDrive states that the radio signal gets to the receiver through the fiberglass of the board,and the foam, rather than through the water.
I will try to put the antenna on the bottom of the box and test different postions…
Maybe it’s my remote or receiver, I don’t know. I also find it quite uncomfortable to keep my hand with the remote control behind my back during the start. I thought about using wired control and even bought a gas pedal but haven’t installed it yet.
yes I had the same idea I’ve built a new small box, with 2 4S 8A in serie = 8S 8A, + an external heatsink. I hope to have enough energy for at least 10 waterstarts with the very small 17Liters board.
(I’m now very close to the commercial foil drive, for only 800 euros)