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Chain Plate position
G'day I'm doing away with the backstay on my Mk1 drop keel, the current chainplates are approx half along the front window...Most illustrations I've seen have backstayless boats with chainplates midway between windows, has any one got a measurement - say "back from the mast step" or an opinion? I've also got a couple of 80mmm tappered alum masts to sell - round 9m long - class rule says 8.3m Another item on offer is an orig swing rudder with cast cheeks.
Wayne Hill23-Oct-2002    Edit    Delete 
Chainplates/stay position
G'day Wayne, see my response to your original query re stay positions dated 29.2.02. My boat is a Mk 1 with skiff rig by Peelgrane.
Phil Moffatt25-Oct-2002    Edit    Delete 
Shroud and now spreader position
G'day Phil, Thanks for the info, that places them about 40mm forward of the mid point between the two windows...I'm welding up some SS chainplates tomorrow night... Next question relates to spreader height I have one recommendation that has them about 2.8 m up the mast from the the base, ie about half way btn jib exit block/ shroud position and the bottom of the mast- I guess that then provides maximum effect to bend the mast forward. Inner stays head off just below that. How does that sound? Any recommendations for the spreader set up? One of the masts I picked up was a peelgrane but sadly its got a dint at the 8m mark, so to get max height I'd need to splice a bit on the bottom..Other two masts are a nice tapered oval section about 90X75 2mm wall thickness so I'm using one of them. regards wayne
Wayne Hill6-Nov-2002    Edit    Delete 
Spreader position
I measured up my spreader position, and they are 3.1 m from the mast base. The hounds are another 2.9 above that. The top couple of metres is unstayed. I have only single shrouds, but I set up an "inner" diamond which goes from the hounds, around the spreaders(not quite to the ends) and down to the mast base. A purchase at the bottom allows it to be tightened at any time to induce more mast bend. This setup made the whole rig stiffer - it used to flop around a lot.
Phil Moffatt12-Nov-2002    Edit    Delete 
Spreader position
I measured up my spreader position, and they are 3.1 m from the mast base. The hounds are another 2.9 above that. The top couple of metres is unstayed. I have only single shrouds, but I set up an "inner" diamond which goes from the hounds, around the spreaders(not quite to the ends) and down to the mast base. A purchase at the bottom allows it to be tightened at any time to induce more mast bend. This setup made the whole rig stiffer - it used to flop around a lot. Have fun.
Phil Moffatt12-Nov-2002    Edit    Delete 
thanks
Thanks for the info Phil And also Ian Lane and Peter Green if they read this... First outing with the battened main & tappered mast and no back stay was a pleasent 10 to 12 knots...boat planed nicely to windward and the main and mast seem a pretty good match pre tuning..didn't go the way of an inner diamond Phil..innerstays worked well

next trip was 30- 35 knots full sail for half a day or so...despite getting soaked &many small nuts & bolts collecting in the bilge nothing busted on the mast (crew of 4 total to stress test!)

I guess the next trick is to get the jib pointing well or a new jib and adjust tracks to get a good slot happening Thanks for your assistance

Wayne Hill5-Dec-2002    Edit    Delete 

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