Many pointed out that the farther out to the end of the boom, the better. Strong bail attached beyond 2/3 length should work. Or a loop of a line or a webbing (Velcro?).
But as important is to attach the other end of the prevented. The further forward, the better. Generally, you want to have an angle between the boom and the prevented as close to 90 deg, as possible. There was an interesting (and very tragic) incident off NZ where the boom prevented failed. There were more things that went wrong, but thing that was pointed out in the post mortem was the preventer mounting. I'll try finding the full report. Marek -------- Original message -------- From: David Risch <davidrisc...@msn.com> Date: 2020-10-31 16:22 (GMT-05:00) To: Stus-List <cnc-list@cnc-list.com> Subject: Stus-List Re: Preventer boom placement The real risk to breaking the boom mid mount are uncontrolled jibes and and/or planting the boom in the water whilst doing same. The former can happen anytime..the later usually offshore. Plan accordingly. Sent from my Android. Please forgive typos. Thank you. ________________________________ From: Bill Coleman <colt...@gmail.com> Sent: Saturday, October 31, 2020 12:44:32 PM To: Stus-List <cnc-list@cnc-list.com> Subject: Stus-List Re: Preventer boom placement Yes, what he said. We always used a four to one tackle, I think the same same one. Snapshackles on both ends, which made it quick to attach. Only difference being, not attache at the end. I used a sparcraft boom which had a nice track in the bottom. So, with a slide and a bail welded to it, you could slide around in that track to make it go pretty much where you wanted it, then down to the toe rail. Bill Coleman On Sat, Oct 31, 2020, 10:40 AM Matthew <wolf...@erie.net<mailto:wolf...@erie.net>> wrote: Peter: Although Josh and Andy do it “right,” unless you’re sailing in relatively heavy air (25 knots and up) I suspect it is unlikely you will break the boom using the existing mainsheet boom bail. Obviously, the further out the better. We use a boom vang kit as a preventer (I believe it is Schaefer -- http://riggingonly.com/TACKLEVANG04.htm ). The kit is stored down below when not in use. If we anticipate using it, we store it on deck near the mast. To use it, we attach one end to the aft boom bail and the other end (with the cam) to the toe rail forward of the boom, then snug it up. It would undoubtedly be better (safer) to secure it to the end of boom. To gybe, we remove the preventer entirely, bring the main all the way in, gybe the main, let it back out, and secure the preventer on the other side. We do not leave the preventer on the boom through the gybe, as it could be a lethal weapon. I believe this method is fairly typical around here (Erie). Perhaps Bill Coleman will weigh in. Matt C&C 42 Custom From: Peter McMinn <petemcm...@gmail.com<mailto:petemcm...@gmail.com>> Sent: Saturday, October 31, 2020 2:05 AM To: Stus-List <cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>> Subject: Stus-List Preventer boom placement Hey group, I'd like to install a preventer on our 37. What's the wisdom on positioning the block on the boom?-- Peter McMinn _/) October is the time to show your appreciation with a small contribution to this list to help offset the costs. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
October is the time to show your appreciation with a small contribution to this list to help offset the costs. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
