Low buck projects- Let's see 'em! - Page 36 - SailNet Community
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post #351 of 1420 Old 05-26-2012
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Re: Low buck projects- Let's see 'em!

Nicely done, SchockT! Thunderbird Marina, I presume??

Ron

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post #352 of 1420 Old 05-26-2012
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Re: Low buck projects- Let's see 'em!

SchockT, Gorgeous job.

Bashing about on Lake Ontario and Beyond
"Ariel" '79 Endeavour 32
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post #353 of 1420 Old 05-26-2012
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Re: Low buck projects- Let's see 'em!

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Originally Posted by Faster View Post
Nicely done, SchockT! Thunderbird Marina, I presume??
Deep Cove Yacht Club actually; I know it looks like a marina because of the derelict beside me! The sailing shot was taken heading across Indian Arm to Bedwell Bay.
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post #354 of 1420 Old 05-26-2012
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Re: Low buck projects- Let's see 'em!

Very nicely done schock!

I would recommend adding a bobstay to the pole though. Asymetricals can add tremendous verticle pull, and the poles alone may not be able to take it. Adding the bobstay however puts the pole into compression, where aluminium is much much stronger. Just weld on a tang to the ottom of the pole, run a line from that to a u-bolt about 6" above the waterline on the bow (into the anchor locker is a good spot, since they are self draining) then take a piece of dyneema and splice it into place. Should cost about $15 in parts plus the welding, but massively strengthen the system.
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post #355 of 1420 Old 05-27-2012
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Re: Low buck projects- Let's see 'em!

I second the bobstay. A boat I raced on had an homemade mini-bowsprit like that, it projected about 1.5' and was made of aluminum u-channel. Went a little to high flying the code zero in maybe 8 kts wind and ripped the sprit upward, along with the deck at bow! Reinforced the bow and added a bob-stay.

To add the bobstay, just drill one hole into the anchor locker. Run a length of amsteel through the hole and tie a knot on the inside so it can't pull through. Easier than trying to attach a u-bolt to the bow.
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post #356 of 1420 Old 05-27-2012
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Re: Low buck projects- Let's see 'em!

The whole intent of the design was simplicity, and that is why I went for the schedule 40 tube section. It is heavy but very strong. I have tested it by grinding on a halyard attached to the tack line and it hadly even flexes. My friends who are riggers and sailmakers agree, not bobstay required.
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post #357 of 1420 Old 05-27-2012
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Re: Low buck projects- Let's see 'em!

It's not the tube that breaks, it's where it attaches to the bow or the bow itself that breaks. Think of all the leverage the tube provides pulling up on your stem fitting.
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post #358 of 1420 Old 05-27-2012
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Re: Low buck projects- Let's see 'em!

Yeah we discussed the loads on the stem fitting, and I suppose in extreme conditions it could be a problem, but this is not for powered up racing, this is for casual family cruising, specifically in light conditions when we are looking for enough power to sail rather than motor. When the breeze picks up we would be over powered pretty quickly and would change to a genoa. If you look at the Selden sprit kits, they rely on a fairly light U-bolt into the deck to take that load with the same extension length. If they can handle the load you gotta think the stem fitting can too. It does handle the loads of a big genoa and a hydraulic backstay that goes up to 2000psi after all!
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post #359 of 1420 Old 05-28-2012
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Re: Low buck projects- Let's see 'em!

I think that your a-spin sprit is a wonderful use of available hardware on the boat, and stuff from the hardware store. Really makes me want to get a new sail!

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post #360 of 1420 Old 06-05-2012
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Re: Low buck projects- Let's see 'em!

Okay, here is another one that you all might like. To create air space beneath my vee berth cushions I bought a PVC lattice panel at Home Depot. Cost was about $28 because I got the one that has 2" openings, not 4". Anyway, it is 4'x8' and I cut it to fit, and then cut it into smaller pieces so that I could access different compartments underneath without lifting the entire lattice. This should allow plenty of air under the cushions and cut down on dampness.

Here are a couple of photos. Let me know if you like it.

Cheers, Bill
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vee1.jpg   vee2.jpg  

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