Steve, I am sorry to stir up a hornet's nest, but I am about to start installing my traveler and your images are the most clear I have seen. The forward block that I am questioning, what I am seeing in the picture may not be SS screws (my guess looking at a small detail in a large scale image) but I don't see how they could possibly be through bolted with backup. The bracket looks like it is mounted on the underside of the boom. Could you share how you did that?
Joe McCary Aeolus II #4795 West River, MD [EMAIL PROTECTED] > -----Original Message----- > From: [email protected] [mailto:catalina27- > [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] > Sent: Thursday, September 13, 2007 2:27 PM > To: [email protected] > Subject: RE: catalina27-talk: Traveler sheeting > > All the blocks are through bolted with backups. > > Steve DeLange > > -----Original Message----- > > From: "Sneddon, Keith" <[EMAIL PROTECTED]> > Subj: RE: catalina27-talk: Traveler sheeting > Date: Thu Sep 13, 2007 1:06 pm > Size: 13K > To: <[email protected]> > > Very wrong. The tension in the line is the tension in > the line everywhere. > The Harken Web site has some good data on block loads vs. line turning > angles. The > load on that block is almost 3/4 that on the traveler to boom blocks. Your > line should > be the weak link, and if that block isn’t through bolted with backup plates, > it is a > potential disaster. > > http://www.harken.com/charts/blockloadvangle.php > > Keith Sneddon > Chief Engineer (Normally I delete this stuff). > Mechanized Systems > Defense Systems > Ph: 631-630-4092 Fax: 631-630-4244 > Cell: 516-313-7420 e-mail:[EMAIL PROTECTED] > > > From: [email protected] [mailto:catalina27- > [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] > Sent: Thursday, September 13, 2007 1:52 PM > To: [email protected] > Subject: Re: catalina27-talk: Traveler sheeting > > > I'm no engineer, but I would think it is. Its only purpose is as a > turning block. It > doesn't have the same pressures as the ones between the boom and traveler. > > > > I had the original curved track traveler so I re-aligned my mainsheet > control to the > traveler car. Now that I have the straight track travaler (Garhauer; > fantastic!), I don't > need to keep it there but I still do. > > > > You should seriously consider adding a boom vang. The midboom doesn't > hold the > boom down quite as good as the end-boom. Your sail shape will be much better > with > a vang. > > > > Bob > > > > -------------- Original message -------------- > From: "Joe McCary" <[EMAIL PROTECTED]> > As they say a picture is worth a million words (hey I am a photographer so > I tend to > inflate the value of a photo a bit). The image I am referring to is: > http://www.delanges.com/Catalina_27/images/Traveler_2.JPG > Its from Steve’s website and shows his mid boom traveler. My rig will be > slightly > different, with double ended sheeting. The folks at Catalina Direct suggested > I run the > sheet from the edge of the cabin top (near the handrail) forward to a > spinnaker block > on a spring then at a 45° to the first blocks on the boom and so on. In the > image > above, while just single sided, he runs his sheet to the mast then down > through a > turning block then to a deck organizer then to the cleet. My question to > Steve was, it > appears the block closest to the mast is held in position by a small > stainless strap with > just 2 sheet metal screws instead of a full through bolted bail on the boom, > is this > strong enough? > > Joe McCary > Aeolus II > West River, MD > [EMAIL PROTECTED] >  > > > From: [email protected] [mailto:catalina27- > [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] > Sent: Thursday, September 13, 2007 12:28 PM > To: [email protected] > Subject: RE: catalina27-talk: Cruiseair on C27-alternative method > > > > Joe, > > you should have a boom vang running at 45* from the boom to near mast > base. > Running the mainsheet across this same area then makes sense, plus > eliminating one > block from the whole setup. > > > > I think you can see what I mean from pictures on my out-of-date website: > mywebpages.comcast.net/sailrmann > > > > Bob Mann > > Windcatcher > > '85 #5928 > > > > >
