Originally Posted by Stumble
On most boats I wouldn't agree, the IP chainplates however a a monolithic welded lattice that is then encapsulated in the hull
. To remove them involves pulling all the furniture off the bulkheads, and then cutting multiple layers of fiberglass
away just to inspect them fully.
Replacing them at this point due to the cost of access only makes sense. If I remember correctly (and it has been years) a set of welded up then electropolished chainplates in 316L runs about $2,000 or around $3,000 in G5 titanium.
A full replacement job runs $8,000-$10,000 is stainless versus $8-11,000 in titanium. Which is why so many IP's are moving to titanium. Because unlikely stainless they will never need to be done again.
This pretty much sums it up. I believe Mack Sails
does the majority of IP chainplates now, they are the ones the factory will send you to.
However Mack Sails
has never done or seen Ti chain plates, mine will be the first set they have done. They are one piece when the boat is constructed, but Mack Sails replaces them in three pieces, to do it in one piece would mean removing the bulkhead, and that is not easy.
Mack Sails has a video on IP chain plate
I hope though that there will be more done with Ti, cause going back with a metal that has been proven time and again to fail is foolish when there is another means available.
As has been said, the tanks
are the other Achilles heel. There are no other issues with an IP that I am aware of. All boats have issues, if you think not, then you are misinformed.
The chain plates are a $10K to $11K job to have done, and if in Ti should never have to be done again.
According to more than one Broker I have spoken to, this is money
that will increase the sales price
of the boat, chain plates are such a well known problem that people now know to ask. Most money
you spend, is gone of course.
I have not met someone with a failed water
tank yet, but I know they are out there, have to be. Aluminum
is not forever, however there are many high end aluminum
boats, so maybe it's not all that bad, maybe if your careful with the bleach it will be OK?
To give credit where it's due Stumble got me looking into Ti as an alternative, otherwise I was headed down the 316 road with the rest of the herd.