Originally Posted by 3DPhoto
Well my first design was a complete failure which was to modify a ss hinge to work and using a pin to hold the mast. I have now built a design much like the picture that sailmonkey sent. I still have one major problem though. How do you make sure the mast does NOT tip from side to side as she goes up. My thought was as I was figuring this out in my head
that the shrouds would do that but mine are not even close to beinig taught enough as I probably have at least 2 foot of slack with the mast all the way down
The answer is in keeping the cap shrouds tight while raising / lowering the mast. One way to do that is to have the pins in the chainplate in the same line as the mast pivot. i.e. the mast and cap shrouds all pivot in the same line. Of course this means the chainplates have to be rigid and the quite high above the deck
They also have to be braced either fore or aft. If braced forward, the brace can cable (rigging wire etc) as forward brace will be in tension. If braced aft, the brace must be rigid as it will be in compression
. The bracing can be designed to be removable if need be.
Sounds difficult and it does take some setting up but works well. Here in Perth, literally hundreds of yachts are set up this way. I am sorry I don't have photo
to post as a picture tells a thousand words etc.