tightening the vang flattens the sail witch spills wind this take pressure off of the boom and mast as it removes drive from the sail. we used our vangs allot racing lido's I hope this explanation helps.
From: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Re: catalina27-talk: Boom vangDate: Thu, 21 Jun 2007 11:22:16 -0400 I have a theoretical question. I have a loose footed main. With that in mind and knowing that the sail only contacts the boom in two locations, does the vang serve any purpose? I can tighten the luff with the Cunningham and the foot with the outhaul. Lance JonesCruising Captain, Barefoot Sailing ClubCatalina 27TR SN 5455 Gaelforce!Capri 25 SN 411 Scottish Rebel! (AKA InstiGATOR) ----- Original Message ----- From: Rudolph S. Behar To: [email protected] Sent: Thursday, June 21, 2007 5:43 AM Subject: Re: catalina27-talk: Stay tension Mike,Here they are, hopefully accurate this time. Last time I goofed the recopying. Of course, Loos Gauge Model A is used for the 5/32nds lowers, and Model B for the uppers and forsestay and back stay.Uppers: Loos B 640Aft lowers Loos A 350Forward Lowers A 350Forestay Loos B 440 with backstay adjuster off. 750 with adjuster full on.Backstay with adjuster off Loos B 380These are markedly tighter than the mean of the figures for the four boats, but still well under the highest settings used by one of the boats. These settings give me no sag in 20 kt and, if I remember correctly, in even more.Depends on what wants, I guess. John's setting is very loose, and his is the boat to beat in our races. But some, as is obvious, prefer a tight rig.The forestay and backstay settings are experimentally arrived at, and from measuring a couple of local boats:I'm told that these figures vary according to what different sailmakers recommend.I have the gauges and will be glad to go to any local boat that wants to use them.Rudy B.Phoenix, #2237Pasadena, MDMichael Munn wrote: Rudy, I'd like to see your revised numbers. Thanks for offering. Mike Katie Bay-B Benicia, CA"Rudolph S. Behar" <[EMAIL PROTECTED]> wrote: All, I recived this scale from this source a couple of years ago and used the median settings on my boat. They were satisfactory up to 15 knots and then started to show lee shroud sag. I pumped up the tension to where I showed no sag beating in 20Kt(whitecaps all over), but I don't remember the setting as I am here at the computer. It's on the boat. I'll get it if anyone wants it.And, yes, I promised photos of my cabin trunk gear in place. Today.Rudy B.Chris Maddox wrote: Also at http://www.ariasails.com/c27rigtension.xls Chris -----Original Message----- From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> Sent: Jun 20, 2007 10:22 AM To: [email protected] Subject: Re: catalina27-talk: Stay tension Try this link for the spreadsheet, also in html format http://users.vnet.net/nliner/c27/docs.html ---------Included Message---------- Date: 20-Jun-2007 09:18:40 -0400 From: "Lance Jones" <[EMAIL PROTECTED]> Reply-To: <[email protected]> To: <[email protected]> Subject: Re: catalina27-talk: Stay tension Thanks, however, there was no attachment. Lance Jones Cruising Captain, Barefoot Sailing Club Catalina 27TR SN 5455 Gaelforce! Capri 25 SN 411 Scottish Rebel! (AKA InstiGATOR) ----- Original Message ----- From: [EMAIL PROTECTED] To: [email protected] Sent: Tuesday, June 19, 2007 11:51 PM Subject: Re: catalina27-talk: Stay tension Lance - I am pretty sure that was put together by Carl Schaefer a few years back and ALL the boats on that list are racing boats and they require mast rake from the adjustable backstay. I am very surprised that Hi Tide's tensions are as high as shown. Please set up your boats (I assume by your title that you are setting the boats up to cruise) tighter than the attached. Chris D toy box eastport, md ------------------------------------------------------------------------------ See what's free at AOL.com. ---------End of Included Message---------- -- ~~| /|\ Neil Liner / ||\ 1984 Catalina 27 TR / C|| \ "Air Transit" / 27|| \ #5711 / || \ Cornelius, NC / 5711|| \ http://users.vnet.net/nliner /______||_____) [EMAIL PROTECTED] ~~~(_____________/~~~~~~~~~~~~~~~~~~~~ // /__/ _________________________________________________________________ Play free games, earn tickets, get cool prizes! Join Live Search Club. http://club.live.com/home.aspx?icid=CLUB_wlmailtextlink
