I'm keeping Stanley

phil_kirk · June 18, 2008, 12:45:02 PM

on Slippery which has a floor stepped mast the kicker most of the kicker loads are attached to the mast step. This means the mast is pushing down and the kicker is pulling up. I did have the ends of the cascade part of the kicker and the bottom of the 4:1 purchase part attached to the mast but both attempts suffered from chafe and finally gave up at bala. the only loads not coming off the mast step are the loads to the cleats which are marginally small.

Assuming I pull on 20kgs of kicker tension a 16:1 purchase has 320kgs of tension in the first line of the cascade, 160kgs in the second line and 80 in the third. that's 560kg plus a factor of safety for shock load for slamming, wind loading, gusts or nose dives or a combination of the lot.

therefore if you attach the whole lot to a single point as i have it should be capable of holding at least 2 tonnes. If you take the ends of the kicker to several points each will be sharing the load.

The fittings leading the kicker out to the side decks could be carrying 100 kg's each.

smight at bbsc · June 18, 2008, 01:48:15 PM

If you want a source of awesome cheap rope... http://www.cheap-rope.co.uk/products.asp?Department=Dinghy%20Rope&SectionID=35

Free delivery and it's bloody good stuff. Otherwise get in contact with someone who buys in bulk and get them to buy you a roll.

phil_kirk · June 19, 2008, 12:18:10 PM

That looks good value! It is tempting to buy a whole roll but you don't want to have all your control lines in the same colour. Especially if you have them all coming to a bank of adjacent cleats.

Phil Alderson · June 19, 2008, 12:31:15 PM

You could try Ian Turnbull www.bovboats.co.uk/ he is trying to clear some of his stock of rope and is giving good deals

Phil

ross_burkin · June 24, 2008, 09:20:51 PM

I'm going to be building the T-foil this week. I'm going for Kevin's new assymetric section but I'm not sure what blade profile to go with. Help?

ross_burkin · July 23, 2008, 08:21:21 AM

I made up a couple of frontting plastes last night but I have used zinc plated bolts, nuts and washers. Redo them with stainless steel or will they be OK?

Phil Alderson · July 23, 2008, 08:55:45 AM

Redo them zinc plated will rust badly and wont last more than a few weeks.

ross_burkin · August 03, 2008, 05:29:03 PM

Not a very good pic, but it hides the imperfections!

ross_burkin · August 07, 2008, 09:28:03 PM

And it's FINISHED! Sailing Saturday (if I find a crew). The forecast is mental...

Eggbert · August 08, 2008, 10:09:06 PM

we need pics!!

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I'm keeping Stanley