funlovincriminal 212 Posted September 8, 2015 Share Posted September 8, 2015 The pulpit on my 830 has a tube welded into the back of the center foot designed for the Forestay to run through it to some adjustable type setup in the anchor locker. The stem has no provision for a Forestay attachment point of any kind either internally or externally. The shape of it doesn't lend itself to a traditional through bolted external tab either. How would you go about fabricating a sufficiently strong anchor point for a Forestay without having anything protrude out the front of the stem? I'm going to be putting a hole through from one side to the other lower down for a bobstay (like a pigs nose ring) I was wondering if that could be incorporated if needed. Please see the hi tech computer aided drawing my 5 year old did for details. Black is deck/stem /anchor locker. Green is pulpit, blue is tube and red is Forestay. Link to post Share on other sites
funlovincriminal 212 Posted September 9, 2015 Author Share Posted September 9, 2015 Found this on the interweb, Elliott 770. Can't see it but assume the wire runs through a turning block up front and the purchase is anchored to the anchor locker bulkhead. This could work as I have already beefed the bulkhead up considerably to carry the Prod bearing. Link to post Share on other sites
Adrianp 127 Posted September 9, 2015 Share Posted September 9, 2015 Do you want it to be adjustable? I looked at this for my old sportboat and found that it would be hard to find blocks strong enough to take the loads if it were block and tackle. With that arrangement above, the ronstan wire block only has a working load of 850kg. Then you start thinking hydraulic but that is too heavy for the very front of the boat and too complicated. A lot of the sportboats have adjustable mast bases which works well to play with tension and keep the weight centralised. The plans for High-n-Fibre showed a really basic setup with a normal hydraulic jack that you used to tension the system and then pin the mastbase in place. In the end we just used an easily adjustable forestay turnbuckle. It worked, was strong and lite. Link to post Share on other sites
Adrianp 127 Posted September 9, 2015 Share Posted September 9, 2015 In hindsight, I suppose with high load rings used instead of blocks, a purchase system might be viable now. Link to post Share on other sites
funlovincriminal 212 Posted September 9, 2015 Author Share Posted September 9, 2015 I like the photo option over the drawing one. Just make sure all the gear used is good shite and why the hell knot I reckon. Me too KM. I'm not entirely convinced I should be left in charge of an adjustable forestay, but in the meantime I was thinking an attachment on my beefy bulkhead with a turnbuckle on it, attached to a wire strop that passes through the pulpit tube and then shackles onto the forestay would be just fine. How do you recommend I make it turn the 90+ degrees it would need to at the front? Link to post Share on other sites
funlovincriminal 212 Posted September 9, 2015 Author Share Posted September 9, 2015 Do you want it to be adjustable? I looked at this for my old sportboat and found that it would be hard to find blocks strong enough to take the loads if it were block and tackle. With that arrangement above, the ronstan wire block only has a working load of 850kg. Then you start thinking hydraulic but that is too heavy for the very front of the boat and too complicated. A lot of the sportboats have adjustable mast bases which works well to play with tension and keep the weight centralised. The plans for High-n-Fibre showed a really basic setup with a normal hydraulic jack that you used to tension the system and then pin the mastbase in place. In the end we just used an easily adjustable forestay turnbuckle. It worked, was strong and lite. Mast is deck stepped. I'm not really looking for adjustability - just a method of terminating the forestay that won't rip out or have me ruining my paintjob Link to post Share on other sites
philstar 62 Posted September 15, 2015 Share Posted September 15, 2015 adjustable is pretty standard on r780's. Its good to let the rig tension off when she is at rest ( which is most of the time). Also the adjust the mast rake upwind and down wind. I run a fixed forestay on RR but adjust the rake slightly for light and heavy weather. Link to post Share on other sites
funlovincriminal 212 Posted September 16, 2015 Author Share Posted September 16, 2015 Either way, I'll need an anchor point in the stem for either the Forestay to terminate at, or for a block to anchor to. A Any hints on a nice strong way to achieve this? Link to post Share on other sites
Marshy 30 Posted September 16, 2015 Share Posted September 16, 2015 Being a ross boat they love weight in the ends. and you wanna sail bow down- so probably with a really really big nut and bolt? - This ought to do... Nice and safe for family cruising... Link to post Share on other sites
funlovincriminal 212 Posted September 16, 2015 Author Share Posted September 16, 2015 Those are some big nuts Link to post Share on other sites
Vorpal Blade 89 Posted September 17, 2015 Share Posted September 17, 2015 Never mind the nut, how big is the spanner to tighten the sucker up? Link to post Share on other sites
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