Catamaran mast compression post step

[Brc45]

If I understood correctly reading previous lightning threads here, insurance companies consider the mast itself to be the primary lightning rod.
Also, as in this case, it’s a conduit for a lot of wires that are grounded.

As such, seems that it should be bonded well.

Seems that in their Lagoon sidearc electrode circuit, Marine Lightning also bonds their front bridge electrode to the compression post step plate:

http://marinelightning.com/systems_gallery_files/XelaLPS.jpg

Actually, seems to me that in their systems gallery for all sailboats there, the sidearc dissipator circuits are bonded to and centred around the mast or compression post.

 

[dankilb]

Wow! We're you aware of the issues prior to purchase?

Needless to say, it's a long story...!

Some were 'identified' at survey (inc. a visible mast compression issue, ironically!) - others were missed (a previous 'professional' boatbuilder had gone over the keel matrix in what we now know was a thin layer of CMS and gelcoat - no resin! - and this failed only quite recently when we last lifted the boat and it visibly 'hinged' aft of the feel instead of sitting nicely in the cradle!). But it's easy to look back and feel the surveyor could've connected the dots. The most time consuming jobs - bulkheads, floors, etc. - all revolved around fresh water left sitting in the boat over prolonger periods of storage/abandonment.

The details are for another day and we've already pulled this thread any which way based on the OPs other posts/topics!

But I do feel compelled to pipe up whenever someone is suggesting a refit 'opportunity' with a large-ish AWB 'project' boat (see OP's other thread on this). The time we've invested is one thing (and I don't begrudge that as I've learned tonnes to the point of starting to help some local pros working on other boats) - but the money was greater than I would ever have estimated (that's for zero labour costs aside from yard handling/transport).

My broader point being = there's at least partly a reason a new one of our boat costs >£250k (probably now by some margin) or >£500 for an equivalently sized condo cat. All parts, fittings, hardware, engineering, electronics etc. massively adds up. That's on top of fixing broken stuff. Our last resin/glass order (for the keel matrix) was >£1k!

 

[Brc45]

In episode 111, Colin says that no surveyor could have found the bulkhead hull separation problems he found in Panama.
Is that right? Would not a surveyor be able to hear it by tapping the hull, as they do.

Seems certain one could find such problems by measuring between keel centres during survey haulout, as Lagoon told Colin to do to reach their jig spec.

I shall add it to the list to tell our surveyor to check, and to find out in advance from builders we‘re considering, what that measurement should be.

(The Parlay Revival is the best and most realistic reality show I’ve seen so far!
Colin is changing women like gloves; his workmates are dropping off under load, except his trusty bulldozer, Jaime! Parlay continues just barely escaping its demise…

So far, making Lagoon and FP look rather bad, which I’m sure is the main reason Lagoon paid somehow to have the leading experts on the matter consult Colin individually to try to minimise PR damage.
By extrapolation, certainly casts doubt on most production boats’ quality and value. :/ )