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Old 21-04-2016, 15:31   #31
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Re: Hull designs .... questions

Through hulls fail.

?

Sure, chainplates fail too and so do shaft seals, toggles, rudder quadrants, keel bolts and waterstays. The hull may delaminate or open a crack, the deck and hull joint can come apart and grp hulls built in halves can part ways. Rust never sleeps and so does electrolysis.

Seriously though, a failure from a well designed, build and maintained thru hull made of appropriate material is such a remote possibility that 99.99% percent of naval architects resolved to employ these inherently unsafe gadgets.

I do think it is nice if the through hulls on any boat are in places where they can be immediately accessed and checked.

The only time I have seen a through hull issue was on an old home built ferrocement boat used in our marina as a water cottage. Not a sailing boat built and ready to cross oceans.

b.
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Old 21-04-2016, 15:41   #32
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Re: Hull designs .... questions

BTW huge cockpits drain very well. You simply build them open aft and they drain faster than small deep enclosed cockpits.

A small deep enclosed cockpit with no bridgedeck now that's what what you should be really scared of. Pretty common in some bluewater designs.

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