I'm selling my '83 Catalina 36 and just closed on a '94 Beneteau 400, now need to get the survey, haulout, sea trial on the Bene. Question: At the last minute, the buyer of my C36 suddenly went nuts about the question of how old was the (wire) standing rigging. We've calmed him down, and the sale is going through.
I know the recommendation is if more than 10 years, replace. But I cannot find anything more than some word of mouth "just because" opinion with no actuarial data behind it, no "failure rate curve" to back it up. You can't scan across the harbor and watch rigs falling by age of last replacement. If there were data to back this up, it should be out there in evidence somewhere, it is not. The 10 year rule seems designed to cover surveyors tails, little more. Because one guy said it, everyone says it.
In reality:
How many people have bought boats with standing rigging guaranteed <10 years old, because it was guaranteed new?
How many have bought boats where you knew the rigging was more than 10 years old, and have not replaced it since? (Me, twice and nothing happened.)
How many faithfully replace standing rigging every 10 years? (Of course you're in the group: "you'll never know" how long the rigs actually would last. Nonetheless, good for you, I'm not criticizing your safety record, just making the observation.)
How many have rejected a boat because either the rigging age was unknown or known to be >10 years old, or the seller would not lower the price because it was >10 years?
FYI, the only thing I've found to have a semblance of authority is a document that states "Navtec recommends replacing the turnbuckle screws after a maximum of 40,000 sailing miles or 6 years (whichever comes first). The screws may last for many additional years, but it is much less expensive to replace a few rigging screws than to replace the mast and all of the rigging."
They do not recommend replacing the entire rig, just the turnbuckles, if the wires are not frayed, there is nothing wrong with them.
But even that does not appear to be based on actuarial data, just opinion.
Thoughts?