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Old 23-12-2020, 20:34   #1
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Outboard Hydrofoil Quick Attach/Detach

It seems like most people that use bolt-on hydrofoils on their outboards seem to love them. I'm curious, is there a design that is easy to put on and take off? I have a storage spot for my outboard in my aft lazarette for ocean passages, but it wouldn't work with hydrofoils installed.
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Old 24-12-2020, 11:32   #2
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Re: Outboard Hydrofoil Quick Attach/Detach

usually bolted in place- i suppose one could use wing nuts and lock washers to take it off reasonably quickly
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Old 24-12-2020, 12:22   #3
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Re: Outboard Hydrofoil Quick Attach/Detach

I assumed that sealant or something would need to be used to isolate the bolts from the aluminum of the outboard, and thus be difficult to do up and undo quickly. Is corrosion here a concern?
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Old 29-12-2020, 07:36   #4
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Re: Outboard Hydrofoil Quick Attach/Detach

There should be a zinc anode very close to the prop - somewhere on the foot, in the water. That should take care of it.

I'm reluctant to go with the wingnut answer. Wingnuts are finger tight, not properly torqued. Having a hydrofoil pull loose while on a plane could be spectacularly messy.

Are you having trouble getting up on a plane? Is that the problem you are trying to solve? If so, consider a finer (less pitch) propeller. Think of prop pitch as choosing a gear - the finer the lower, the coarser the higher. Struggling to get up may be starting in too high a gear. Hydrofoils help at the other end - more lift - but the price tag is more drag.
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