The North hydrofoil comes with a sealed aluminum mast.
CG
I think all of the ALU foil producers should use this method mentioned above. I did the same with strips out of XPS. It keeps 99% of the water out, it adds almost zero weight and you can always get them out, rinse the inside of the strut with fresh water and put them back in.Look to windsurf booms for the answer. They’ve been filling them with foam for longer than some of you have been alive.
They don’t try to seal the boom bodies tight, they just fill the cavity with extruded polystyrene. It is the spongey white foam that is water proof. Many foils come packed in expanded polystyrene. I sliced up that packing and fill the mast cavity.
End result, 80% of the void gone. No worries. Minimal water capacity.
jaros wrote: ↑Sat Mar 17, 2018 11:33 amI did the same with strips out of XPS. It keeps 99% of the water out, it adds almost zero weight and you can always get them out, rinse the inside of the strut with fresh water and put them back in.
I really can not see why they are not doing it...
Greetings,
Jaros
This is also an interesting idea. Aside from labor/cost, one reason not do it is that one of the bad scenarios for corrosion is to have a small void or channel next to your alloy and fill it with salt water, and maybe some other contaminants. Eventually some customers would end up with metal filings, bits of sand, salt water etc pooling in there, wearing away any paint or anodizing inside, and causing unseen corrosion.merl wrote: ↑Tue Mar 20, 2018 1:32 pmjaros wrote: ↑Sat Mar 17, 2018 11:33 amI did the same with strips out of XPS. It keeps 99% of the water out, it adds almost zero weight and you can always get them out, rinse the inside of the strut with fresh water and put them back in.
I really can not see why they are not doing it...
Greetings,
Jaros
I'd be interested to see some pics/vid of this mod if you have a chance!
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