Tow boogie general design

Of course, printing is easier, but, for example, I had a couple of PETG parts that just fell apart after a year. I started to figure out the reason and found out that the structural strength of PETG can be greatly reduced by vibrations.
One of the reasons why I want to go back to a single-motor scheme is that I have a couple of unused boards ). I do not plan to use the StrongArm scheme with a linear actuator - it is good for a commercial device, but for a personal one it is too complicated, since it requires an expensive remote control with an additional channel.
My friend has an 18 kW tow boogie based on a water jet. It is perfectly controllable, waves are not scary for it, automatic modes such as “follow me” are implemented. But there is one nuance - its weight and dimensions are close to a boat.

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I hope the incident is closed.
If anything, I have no complaints against Jesserosco, only gratitude for the excellent topic. I would have preferred not to mention my authorship at all, if not for the accusations of trolling.
I wish everyone a fast tow boogie and the latest GoPro models!

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We’re on it!

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rctestflight on Youtube has decided he wants to learn to pump foil and put out a nice video of developing a tow boat.
Not exactly a tow boogie, more of a tow catamaran. I think he needs a Bremote to get the differential steering set up.

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What do you guys think about having the tow bar under the board, doubling as a fin/keel?
Sort of an extension of what @Strongarm did here:


If it works well and provides better straight tracking then you could lower the fixing point and have a sliding tow bar inside the keel. Like this:

Any views on this?

I tried a sub surface tow point so it was like a combination skeg and a tow point.

Initially it was 100mm below the water, and I kept cutting it shorter and moving up the tow point. I didn’t notice any real handling performance increase by having it lower but the rope coming out of the water and the associated spray looked like crap.

What you have drawn will work fine though and will help with the tracking.

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OK, thanks for the input. The spray issue i wouldn’t have thought about. I’ll keep a small keel and put the tow point above water :+1:

With two motors you will have no problem with straight line movement.

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