Surf tabs on a direct drive (ski boat)

[debon123]

In fact i won't be drilling anything in the hull. The tab hinge will attach to the aluminium frame (blue in the image below) and the frame will be bolted to the swimming platform brackets.

gate4.JPG
gate5.JPG

I sent the drawing to the local sheet metal shop so they can make be the tabs. Now i am working on the arduino program and on the control box.

[debon123]

Does your swim platform interfere with your wake?


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Yes it does, that's why i am jacking it up by 2.5''. It should clean-up the wave.

[debon123]

I did a surf system like Nautique's NSS on my Direct Drive. It worked pretty well. It was actually cost effective and I could change sides in under 30 seconds manually.

https://forum.supraboats.com/showthr...-after-the-NSS

I read your thread but did not realize it was a direct drive boat. The wave is really improved. I hope I will have a comparable result !

I thought of putting an NSS system but I do not want to drill my hull and I want an automatic system. Installing an NSS system attached on the brackets of the swim platform would not work, it would be too much in cantilevered i think.

[98outback]

My cousin sent me a picture of a Supra direct drive with surf tabs that was on his neighbors lift. I will see if I can find the pictures.

[debon123]

That would be awesome!

[98outback]

He’s gonna take some better pics next time he’s out. I deleted the ones he sent me but I have one you can barely make it out.

[MJHSupra]

Yes it does, that's why i am jacking it up by 2.5''. It should clean-up the wave.

Good deal.

When I put tabs on my 2007, I had to raise my swim platform about 1” to be able to mount the actuators.

I used a strips of HDPE on top of the swim platform mounts.

I also swapped out the old platform for a new surf platform and a nice pad on it.


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[MJHSupra]

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[MJHSupra]

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[debon123]

B682C7CA-0F5F-42A3-8260-46F325DEC21B.jpg

Gate received and controller programming almost completed. I just need to find some time to finish the frame and to assemble this.