Lazy jacks for a centaur

[rosiefree]

Hi, I've lead all my lines back to my cockpit on my centaur and had a stack pack and new sail made. the stack pack has 4 webbing pick up loops i've tried doing some research on the internet but im now totally confused about how to set up the lines. Barton kits are not any good as they only have 3 pick up points. Should the 4th line be fixed? i've looked at quite a few variations and don't no what is best . Should I use ss rings and if so how many?what size braid etc?were should the fixing be on the mast? I could really do with a diagram as ive not really much idea of what im doing. any help would be much appreciated.

 

[BAtoo]

4 loops sounds a bit of an overkill for a smallish boat but something like this:-

(On each side)
Line from 1st loop to 2nd, another line 3 to 4, say 8ft-ish each; ring or small block on each of these.
These rings or blocks joined by another 8ft-ish line on which a single block or ring.
From this ring line up to your mast at spreader height, round a turning block then down to cleat.
Fiddle with line length till it all looks right.

5mm line will be fine as will SS rings or small plastic blocks. The simple SeaSure blocks will also suffice.

 

[Tranona]

The person who made the stack pack should tell you how to rig it - usually they would also supply the cord and fittings.

On my 4 pick up points (usually chosen because of the relationship between boom length and mast height) I use one line each for 1 and 3 and 2 and 4. The lines go up from 1, though a ring and down to 3. Same 2 to 4. The ring has a line to a small block on the mast just below the spreaders and down to a cleat. The lines to the pick up points are attached with a bowline and lengths adjusted so that each pulls evenly. Worked fine for the last 20 years or so. Cord is from memory 4mm.

 

[davidej]

Not really necessary to go to the expense of rings or blocks - ours works fine with bowline knots.

 

[Stork_III]

I use slippy braided line 6mm, with sewn loops. Line 1 up to line with loop from up mast. Loop in end of line 1 picks up line 2 whose end loop picks up line from 3 to 4. Works better the higher you get the loops.

 

[ianfr]

I set up lazy jacks this year using 6mm braided line with stainless rings as shown here http://slowflight.net/upgrades/lazyjacks_how-to.html They work brilliantly. The downhaul pulls the lines out of the way of the sail while hoisting the sail and while under sail, release the downhaul and haul up to lower the sail. Very neat recommended.

Like the OP my stackpack came with 4 hoist points which gives really good support on the boom. (Sabre 27 10ft boom)

Smug mode on: Taught myself how to splice eyes in braided rope and made the whole thing myself.

Regards

Ian

 

[ianat182]

I posted a suggested method for stacking a mainsail using the topping lift, fitted with plastic 'click' shackles and plastic carabiners,and 4-5 sets of cordage,(no pulleys required).

When not in use the topping lift and cordage is taken forward to the mast and secured;just prior to dowsing the mainsail the topping lift is fitted as normal and cordage sets clipped together and the mainsail can be lowered,flaked and sail-tied. The sail cover can also be fitted ,without removing cordage.

Total cost would be about £20 and 3/4hr to make up the set. The thread "SAIL SLIDERS" 3-4 days ago contains the full explanation.

ianat182

 

[Slow_boat]

I made a stack pack with 3 pick up points on my Sadler 29. The line is 4mm nylon costing about £5 for 100mtrs off ebay and the eyes are nylon and 49p each, sewn into the line.

Three pick ups is plenty for my boat. The first is about 18'' from the gooseneck, the second about 70% of the foot length and the outermost about 18'' from the clew.

It works fine.

BTW, it's easy enough to make a stackpack from a traditional type sail cover if you can use a sewing machine. Saves a bomb, too.