Yes, my apoligies for the acronym thing. I did mean Naval Architect, when I typed NA.
Ah, & yeah, it'd be FAR easier to do the job with the mast out. Especially if/when you have to disassemble a lot of what supports the cabin sole
, & possibly interior
furniture, in order to get at the bits which are in need of repairing/replacing.
I'd suggested calling in an NA, as from what I could see, it appears that you'll likely both need to repair the damaged areas, as well as improving on the original design.
Meaning, to cut out the old, dead structual bits & replace them. Plus adding some new, beefier supports along with the original design. That, or have an NA or good shipwright, come up with a new design altogether, for things.
Because, due to the crushing, & what I can see of the structure in the neighborhood of the mast's butt, it loolks like there's nothing solid underneath of the web which was previously holding up the spar. Or that if there was, it's at best, turned into bits of "Swiss Cheese", & dust.
IE: It appears that there's not much of structural consequence in between the butt of the mast, that structural bridgework, & the keel.
Where in my mind, you'd likely be best served by a fixed blocking of some sort, from the keel to the mast's heel, & spanning the beam of the boat, out to at least the turn of the bilges. In orne form or another. Be such structures; metal, wood, composite, or some combination of those.
And while in the link you provided, they talk about pouring in structural epoxy
, as a fix. I gather that your boat's a bit different in terms of how things down there are designed. So that even with proper, & creative damming, it'd not be plausible to effect a repair on your boat that way. Or at least not based on what I can see.
Which, even with the best of pics, diagnosing such a thing, sans pages of documents, & seeing much more of the structure of the boat, I'd only be guessing at fixes.
Not that I'm saying that I'm throwing in the towel, if more info & images
get added. Though I'd love to grab my passport, & a crate or three of my favorite tools, & come on over
BTW, what kind of material is it that's holding the spar's butt up at the moment? Diitto on what the boat's made of, etc. And how all of the primary structures are tied together?
: I'd be REAL
cautious about lifting up a spar as they did in the link:
That's a Lot of load to be putting onto a small section of the deck
. And you may need to build some temporary internal framing to handle such a load, without damaging your coach hours, structurally.
Plus, it'd be easy to goof, & dimple/crush the mast tube, via attemptig to lift
it in a fashion which uses a collar exerting compression
on it's walls in order to support it's weight. And you're going to need to lift
yours up much further vertically than the did to. Likely on the order of 6" minimum, & more would be better.
Especially if you wind
up needing to replace that whole web type suportive framework. Then, in that case, the more access you have, the easier the job will be.
And my apoligies if I'm telling you a lot of things which you already know. I'm just kind of thinking through the problem aloud, via the keyboard.