Well; let's just say that people who have not "crunched the numbers" are not well enough informed to give you the advice you are looking for.
I gave 'em the numbers. A couple replied that they felt Harken's calculators "over-spec" things. (My words, not theirs.)
I guess that I have a different perspective than your local sailors because heavy wind is the norm on SF Bay and it's not uncommon to see the racing sailboats heeled to 60 deg, dismastings, catamarans getting flipped, boats in distress, etc.
I don't believe (the key word here is "believe") that's common, here. I'll have to ask about it. But your point is valid, nonetheless, if for no other reason than we someday plan to cruise with this boat. So what we're experiencing here, or likely to experience here, isn't necessarily what we'll experience elsewhere. Indeed: Even just going across the state, to Lake Michigan, will be quite different. (I understand Lake Michigan can become quite harsh, quite quickly, quite unexpectedly.)
Welcome to sailboat ownership! Some humorous things I have been told are:
B.O.A.T. - Break Out Another Thousand
A BOAT is a hole in the water that you throw money into.
Owning a sailboat is like taking a shower while ripping up hundred dollar bills.
I think that's supposed to be "standing under a cold shower"
. Heard 'em
. Related 'em to The Admiral. She didn't see why these things should be true. She's finding out.
Just think what it could cost if you have a mainsheet failure and your main, boom, rig get damaged.
Precisely one of my points, night before last.
Way undersized IMHO. You never want to put your rigging in the potential failure zone when sailing under normal/moderate wind conditions. What about the event of a hard gybe?
Another point I made.
What if you can't get a reef set because the halyard sticks? An unforseen problem can be compounded if something (like your mainsheet rig) physically breaks while you are under full sail.
Good argument. I'll keep that one in reserve for the next time
If it were me I would either mutiny or go AWOL.
I mutinied. I called up and canceled the order late yesterday afternoon. (Made it just
in time, too.)
I don't think Lewmar 50mm blocks are correct for your application
60mm, actually. It's not so much the 60mm, but the SWL and breaking strength.
(good god man, predicted breaking load at ~25kts??),
27 kts, but your point is valid.
Now I just need to decide between the Lewmar 80mm fiddles, the Harken 4:1 solution (57mm dual block, 76mm fiddle), the Harken 6:1 solution, or maybe the Harken 4:1/8:1 self-contained system. (I'd really like to go w/Lewmar, but they don't appear to do anything with a ratchet, other than fiddle blocks.) Decisions, decisions. The lower I go, the faster I can move the boom and the less mainsheet I'll have on the cockpit sole, but the more strength it'll take to use. The higher I go, the slower the boom moves, the more sheet on the cockpit sole, but the more likely The Admiral, and perhaps I, will be able to deal with it. I think a tour of the club's slips is in order, as Sailormann suggested.
To you, KeelHaulin, and the others: Thanks for patiently continuing to beat me up on this issue. Who knows: Perhaps y'all saved our boat--maybe even our lives.