I wasn't saying going out in big winds Paul, I'm only just comming to terms with that myself with the 5.8. It sounds like you have it stored mast up. As a temporary solution you could take some foam only a couple of inches thick and push it in the top of the mast so it cuts to shape then sikiflex it in place covering the top of the foam, it would be ready in about an hour, if you do it as soon as you get there by the time you leave the beach you'll be right. Thats far from ideal but will give you time to right the boat, there are a lot of threads on this forum if you search mast sealing. There must be someone else with the same boat reading this thread come on guys what about some more ideas.
regards

think about it for a moment....

Without hesitation, I'd stand on the board.

Consider the forces that normal sailing puts on the boards, LATERALLY for the most part, what, thousands of pounds? And you're worried about YOUR weight? I wouldn't use 'em for a springboard, but yeah, I'd stand on the board to right the boat...

Better to stand on the board which is reinforced for big loads than the hull which is only reinforced to resist being pushed thru the water.

My Mystere 5.5 has centerboards that rotate on a big nylon pivot. 1 time it jammed and put a hole in the center board trunk.... that hull was under water in 5 minutes. i would NEVER stand on my centerboard.

I used a big righting bag and had no trouble righting my boat solo in about 3 minutes.

You're lucky I'm in a benificent mood today

Here, read this
http://hem.bredband.net/b262106/Boat/Boardstrength.pdf

And note the quote:
"Note The load at the lower end of the dagger board case is equivalent to having the hull laying down on its side and putting a 944 kg weight at that case exit. Make sure the boat is stronger than the boards!"

Now maybe you weight 944kg?

Well this clears it all up!

A little story about boards -

A few years back I bought new boards for my 5.8. It turned out they were from a bad production batch with the incorrect layup. The factory tried to recall them, but somehow these made it out to me.

My crew and I stood on them several times while righting the boat, no problem. But one day they snapped while making a quick manuver while sailing fast downwind.

So, that's annecdotal evidence that the loads on boards while sailing are far greater than two people standing on them while righting.

those calc are for trimarans?
I have a hard time thinking that the load on a 16ft cat's boards are to 2000lbs. I can see some loads like that on a tri, but no way on the boards of my cat.

on the other hand--- good point for the reasoning not to stand on the hulls.

those calcs are for whatever you want to put in, but yes, your cat will see thousands of lb load on the boards, every bit of it! What sort of breaking strength do you have for your mainsheet blocks? Is it in the hundreds or the thousands?


Here's a simple diagram of the forces involved on your main (and I don't want to get into the Bernoulli argument, thank you very much, it's obvious that some of us aren't nearly at that level of understanding....):




Now's a simple diagram of the forces on your board:



What do you think? It's really all about Fnet=ma (Thank you Mr Tilley for teaching me that.)

Look, here's a simplified explanation website:
http://www.physclips.unsw.edu.au/jw/sailing.html

Here's a bit about how blocks work:
http://www.phys.unsw.edu.au/~jw/blocks.html

And a bit of light reading:
http://www.sailboat-technology.com/links/online_articles.php

you couldn't figure that out? jeeeze.. whats wrong with you? I bet you don't know about the Bernoulli effect either.... apparently it is a really complex concept that only a few on here can figure out.
<img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />

Y'know,

I'm kinda tired of all this misogyny. The chauvinism expressed at this site is phenomenal.

I post something, however correct it might be, and one of you "boys" have got to argue it, every damn time. Yet when a dude posts something, however incorrect it might be, nobody challenges the assertion.

The remark was meant to forestall any hijacking of the thread from one about calculating force on boards to one about Bernoulli v. Newton v.etc. which has been hashed out interminably. Since I'm female you don't ever want to believe what I have to say, I guess that has to be what the deal is, so do a search.

I back up what I say with data and equations, since it's the way I was taught to do. If you don't understand something, don't be snide, just go learn about it, which is what my references are meant to offer.

It doesnt matter if your a male or female...

Pull out the calculus formulas and you might get poked fun at, regardless of your sex (just ask Wouter)....

Misogyny
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Wiktionary, the free dictionary.Misogyny (pronounced /m&#618;&#712;s&#594;&#676;&#618;ni/) is hatred (or contempt)[1] of women.[2][3] Misogyny is parallel to misandry — the hatred of men. Misogyny is also comparable with misanthropy,[4] which is the hatred of humanity generally. The antonym of misogyny is philogyny, love towards women. Those holding misogynic beliefs can be of either sex.[citation needed] Marcus Tullius Cicero reports that Greek philosophers considered misogyny to be caused by gynophobia, a fear of women.[5] In the late 20th century, feminist theorists proposed misogyny as both a cause and result of patriarchal social structures.


Wow, I thought it was a joke, not to poke fun at you Tami, but just how smart some people are, and how dumb the rest of us are. : )

Come on relax Tammi this site doesn't have a go at females I don't understand calculus either and would have made the same joke. Thanks for posting to the thread, I know your right because if you go out in 20kts on the wire keep the boat flat and pull your centre boards up the sail pushes the boat more sideways than forward.
regards

tami,

It is the light reading list that I truly like. Especially "505 fins-the definative works". Some of these articles are quite good and informative. thanks for the links.

i had to look it up also to see if there were other meanings.... as i couldn't see any sexist response at all....

Try the decalf

Try it without a baby cow? <img src="http://www.catsailor.com/forums/images/graemlins/confused.gif" alt="" />