Lazy jack to main sail cover attachment

[Ron20324]

Uh,... Guys... The 311,321,331,323,31 are obviously different models- masts included- and probabaly each have their own design. You're comparing apples to oranges. On the 323, those lazy jacks go through holes in the trailing edge of the spreaders- there's like a compressed flange. They are known to wear out the lazy jack's main line, so I put a twisted D shackle in the hole then led the LJ trough the shackle to go high up the mast. Maybe Pierre's go from boom to upper mast, but it would only have maybe 8 inches of seperation. The 311 and 323's we can see the LJs are moved outward to allow more space for the sail to drop.

So, CptnRon's 331 is not wrong because it does match Pierre''s 31.

 

[Ron20324]

[QUOTE.. If I recall correctly I'm pretty sure that my lazy jacks dead end on each each spreader, a good distance from the mast.[/QUOTE]
My 323 terminates up on the mast on D loops. I bypassed that termination, brought the two lines in front of the mast to connect to a new "halyard"/control line. There is a block in the front of the mast(probably for a spin pole topping lift) that I ran the halyard through and down to the deck. You could just have a cleat on the boom or mast to tie off, but I ran mine on back to the cockpit and a line stopper. It can work as a topping lift.

 

[pateco]

My lazy jacks termintate at the base of the second spreaders

They are one continuous line, adjusted using a system of 2 blocks and two cleats on the boom. I have to make sure the headboard doesn't get fouled when raising the main past the attachment point.

 

[CptnRn]

Uh,... Guys... The 311,321,331,323,31 are obviously different models- masts included- and probabaly each have their own design. You're comparing apples to oranges. On the 323, those lazy jacks go through holes in the trailing edge of the spreaders- there's like a compressed flange. They are known to wear out the lazy jack's main line, so I put a twisted D shackle in the hole then led the LJ trough the shackle to go high up the mast. Maybe Pierre's go from boom to upper mast, but it would only have maybe 8 inches of seperation. The 311 and 323's we can see the LJs are moved outward to allow more space for the sail to drop.

So, CptnRon's 331 is not wrong because it does match Pierre''s 31.

I was mistaken about my lazy jack lines ending at the spreader, they pass through a sleeve in the spreaders and then attach to the mast similar to what you Ron20324 describes. I think that can be seen in the photo I posted. Yes I prefer them going to the spreader as that seperation makes it easier to raise and lower sail without the battens getting hung up on the lazy jacks.

Different strokes for different folks. If the PO always parked his boom at the same place, tying the 'jacks makes sense. I have to limit the drop of my boom, lest it lay on the bimini when the main is dropped. As far as the jacks sliding on the batten, other than previous offerings, you could run a line from the end of the boom, through the batten pockets, and tie it to each lazy jack to prevent it's forward movement.

The modifications the PO made don't work, they hold the boom a full 4" above the bimini, which interferes with the mainsail trim. I might try your suggestion for keeping the jacks from sliding on the batten, but first I will try installing them over rigging tape as recommended in the installation instructions. I'm going to redo the whole configuration to match the way Niel Pryde says they are supposed to be set up.

 

[CptnRn]

CaptnRn,
From your photos we can see that are the rings are not doing their job because the lines are knotted, your set-up is inverted: the short /\ section should be forward and the lines should not be led through the guides in the spreaders, they should go to the turning blocks 3 meters (10 feet) higher and come back down through the guides in the spreaders and then tied to the cleats either side of the mast. On the attached photo you can't see the lines come down through the holes but you can see that the pull on the lazy bag is much more vertical than on your boat.
PierreView attachment 118888

You are right about the knotted lines. However in my case the mast does not have the additional turning blocks you described. Having the lines go through the guides in the spreaders opens up the mouth of the lazy jacks and makes it easier for raise and drop the sail.

 

[Ron20324]

Having adjustable lines is important, and on the 323 and some others, is not doable as manufactured (cost control). If all the OP wants to do is lower the boom to just barely clear the bimini, he still has a problem: What about when the boom is out beyond the bimini? Out there, you'd want to drop the boom so the weight is on the sail, not the lazy jacks or topping lift.