Originally Posted by billdre
I've decided to replace my chainplates for next season. To be sure about receiving correctly made replacements
I'm planning on sending the old ones to the firm that will make the new ones. So the question is ... has anyone left their keel stepped
mast up with the upper and lower lateral shrouds removed for any length of time. Forward lower shrouds, plus fore stay and back stay would remain. Also I plan on using the jib
and main halyards as lateral support anchored to stanchion bases. The stanchions are mounted on solid layup
, no core, with back plates. Has anyone done this? For how long? Was it OK? Thanks.
Yes I did that a couple of years ago. My mast is deck stepped which might be considered more of a problem than keel
stepped. In fact it was no problem at all.
I used the forestay which didn't need removing, plus the headsail halyard
, the main halyard
, and the gennaker
halyard triangulated back to stanchion bases.
I also left in place forward lowers on their own chainplates that weren't being changed.
You will be fine using your back stay and main and headsail halyards with your fwd lowers in place. I did need to tie on more lengths of polyester braid to extend the halyards and I tensioned them back to stancheon bases with my version of the truckers hitch. That's a knot
made into a purchase
. I did make sure the halyards were very secure at the jammer ends also tying back to other cleats
This was for maybe 2 months in winter weather
as I did major interior
work including removing the old chainplates and their knees, removing furniture and water tanks
, fibre glassing, designing and constructing, and installing new chainplates, reconstructing the furniture to allow more room, and installing new flexible water tanks
. Then finally repainting inside which I did the following winter.
Before you remove your rigging
it's a good idea to put a couple of turns of masking tape around your rigging screws to mark the adjustment positions so that you have a starting point for setting up your rigging again. When you finally set it up put a sail slide in the main track and tie a tape measure on. Haul it up the mast on the halyard (with a safety down haul line) and measure down to your chain plates from each shroud
/ mast attachment point. Assuming your mast and chain plates are in the correct places they should measure the same on each side. Check that your plates are correctly positioned before you install them, with multiple measurements including back along each deck from the base of the forestay.
My mast is 40' above the deck. As yours is keel
stepped it will be even more stable, though mine was perfectly stable.
It was a big job but well worthwhile. Removing the old stuff and the necessary sanding
was the hardest and longest part.