Shroud and forestry tension
- Thread starter WI Rigger
- Start date
Generally you tension rigging to a percentage of the breaking strength of the wire. 15% is pretty typical. So if the wire is the same size it’s likely the case that the target tension is the same. This is my go-to PDF for these types of things - https://support.seldenmast.com/files/595-540-E.pdf
I sent a private message to the poster if he wants to learn how to tune the water ballast h19 assuming the water ballast as I introduced that boat and purchased the last one built as a dealer.
Crazy dave
Crazy dave
Could you please send me this again? I love the book!
thanks
Ric
I tried to get tension values from Hunter. No answer. So, I looked up tension values for a Potter 19. Much to my surprise I had tensioned my rigging to their numbers.
You can always get back to it just by clicking the link above, or https://support.seldenmast.com/files/595-540-E.pdf
I don’t know much about forestry but no, the tension in the forestay is not necessarily the same as the shrouds. Get the book recommended above.
Never used gauges but taught tuning the old sailors way. Too.much damage seen by over tightened rigging over the years. However, it is not my boat
I hav
I have read through the book, it was most informative! You are correct, the shrouds and forestay have different values. I think, partly because there is no backstab to pull against.
Thank You for your reply.
Ric
I was running on a 060 heading, with the main sail all the way out, I brought the sail in so it rested about 2” from the shroud. I then knotted the main sheet at this point. Due to some inattention, we drifted to a 090 heading which made the boom swing from Starboard to Port. The knot stopped the boom from crashing into the upper shroud.
Is knotting off the main sheet a good idea?
My main sheet extends 10’ or so beyond the knot, is there a reason for all of that line?
Thanks
Ric
Is knotting off the main sheet a good idea?
My main sheet extends 10’ or so beyond the knot, is there a reason for all of that line?
Thanks
Ric
Having the knot probably doesn’t hurt anything. You want to avoid those accidental gybes though. Having the boom fly across like that is liable to break something or hurt someone in stronger wind, regardless of the knot.
Having the extra line available could make it more convenient to control the mainsheet from different parts of the cockpit when you’re on a run. Also if you have a traveler it’ll take more line to run if the traveler is on the opposite side. I probably wouldn’t bother doing anything to change that.
Having the extra line available could make it more convenient to control the mainsheet from different parts of the cockpit when you’re on a run. Also if you have a traveler it’ll take more line to run if the traveler is on the opposite side. I probably wouldn’t bother doing anything to change that.
Sailing is an art which you have to practice at like an artist on canvas. You have to be more careful in high winds. Stopper knots to stop a boom two inches in front of any shrouds is dangerous to people and the boat at that great angle. If you ever have been hit by a boom in the head, you will understand. I too was on a sailboat in high wind where the owner unreefed the boom and let the furled headsail out to 150% against much wisdom of others on board. I ended up in the drink unconscious.
As for hardware failure and hardware ripping out, that can happen to. I had a customer and I rented two sailboats in the islands. A low grade hurricane changed course and it was recommended to come in. The other boat tried to do a wing to wing getting as much speed as he could against my suggestions. Boom came over hard ripping out the traveler. He turned quickly into the wind dropping the headsail to prevent further damage. I suggested motoring in.
As a dealer, I repaired damage to both large and small sailboats due to accidental gybes but there is a system to prevent that as It is at a lesser degree of angle. I leave it up to others to explain.
My concern is stopper knots stopping the boom two inches away from the shrouds where injury is a concern of mine as I err on the side of safety
As for hardware failure and hardware ripping out, that can happen to. I had a customer and I rented two sailboats in the islands. A low grade hurricane changed course and it was recommended to come in. The other boat tried to do a wing to wing getting as much speed as he could against my suggestions. Boom came over hard ripping out the traveler. He turned quickly into the wind dropping the headsail to prevent further damage. I suggested motoring in.
As a dealer, I repaired damage to both large and small sailboats due to accidental gybes but there is a system to prevent that as It is at a lesser degree of angle. I leave it up to others to explain.
My concern is stopper knots stopping the boom two inches away from the shrouds where injury is a concern of mine as I err on the side of safety