dmayes
Member
I am trying to renovate a Yorkshire Cobble.
Approx 16 feet long and bought as a sailing boat. There is a problem with the standing rigging. The mast sits 12 feet forward of the stern, forestay is 3 feet 5 inches forward of the mast, the bow is another 9 inches past that. The side stays are mounted 2 feet two inches behind the centre line where the mast is positioned and 3 feet direct line to the mast, the beam at the point where the side stays are fitted is 4 feet 5 inches. The height of the mast is 11 feet above gunwale line. At the moment, with the forestay at 0 degrees the side stays are at 135 degrees and 225 degrees respectively making the angle between the two side stays 90 degrees. If I change the side stays so that they are at 120 degrees around the mast then because of the beam at that point the side stays will be at a narrower angle to the top of the mast than the forestay, increasing the load on the stay and the top of the mast. If the sails push the boat forward then should the angle of the side stays be different to give better pulling power backwards at the top of the mast?
This has a dipping lug rig and square sail, the side stay attachment points are just eye bolts fitted through the gunwale, which admittedly is quite strong but is it strong enough? I would like to fit some chain plates closer to what I think is the correct angle. Should the standing rigging be placed at 120 degrees each as seems to be the case on the dinghy’s I have seen and checked?
If I change the side stays so that they are at 120 degrees around the mast then the side stays will be at a narrower angle to the top of the mast increasing the load on the stay and the top of the mast. If the sails push the boat forward then should the angle of the side stays be different to give better pulling power backwards?
The boat also has no lifting keel, the centre keel is virtually full length and the two side keels are about three quarter length but each one is only about three inches deep. While on the trailer, the draft seems to be only about 10 inches. Will this just blow sideways in any sort of wind?
I strongly suspect that this boat was not a sailing boat to start with and someone has bought the rig and tried to fit it, not very well in my opinion. Any opinions welcome.
Approx 16 feet long and bought as a sailing boat. There is a problem with the standing rigging. The mast sits 12 feet forward of the stern, forestay is 3 feet 5 inches forward of the mast, the bow is another 9 inches past that. The side stays are mounted 2 feet two inches behind the centre line where the mast is positioned and 3 feet direct line to the mast, the beam at the point where the side stays are fitted is 4 feet 5 inches. The height of the mast is 11 feet above gunwale line. At the moment, with the forestay at 0 degrees the side stays are at 135 degrees and 225 degrees respectively making the angle between the two side stays 90 degrees. If I change the side stays so that they are at 120 degrees around the mast then because of the beam at that point the side stays will be at a narrower angle to the top of the mast than the forestay, increasing the load on the stay and the top of the mast. If the sails push the boat forward then should the angle of the side stays be different to give better pulling power backwards at the top of the mast?
This has a dipping lug rig and square sail, the side stay attachment points are just eye bolts fitted through the gunwale, which admittedly is quite strong but is it strong enough? I would like to fit some chain plates closer to what I think is the correct angle. Should the standing rigging be placed at 120 degrees each as seems to be the case on the dinghy’s I have seen and checked?
If I change the side stays so that they are at 120 degrees around the mast then the side stays will be at a narrower angle to the top of the mast increasing the load on the stay and the top of the mast. If the sails push the boat forward then should the angle of the side stays be different to give better pulling power backwards?
The boat also has no lifting keel, the centre keel is virtually full length and the two side keels are about three quarter length but each one is only about three inches deep. While on the trailer, the draft seems to be only about 10 inches. Will this just blow sideways in any sort of wind?
I strongly suspect that this boat was not a sailing boat to start with and someone has bought the rig and tried to fit it, not very well in my opinion. Any opinions welcome.