Thanks for the helpful replies. I do have a rigid vang supporting the boom, so that is not a problem. Once the sail is down and we are on the mooring, I also carry the main halyard aft and attach it to where the topping lift used to attach. From your inputs so far, it sounds like 4 lines is overkill. When aboard overnight, I leave the lazy jacks attached to the boom, so they don’t make noise knocking against the mast, and because they are not supporting the boom (rigid vang + main halyard as a topping lift), I plan to leave them attached to the boom.
Eric Frank Cat's Paw C&C 35 Mk II Mattapoisett, MA > I would advise against using the lazy jacks for supporting the boom. A > topping lift or a rigid vang is much better for that. > > You have to put together enough vertical lines, so that the sail will not > droop between them. This depends on the sail cloth, battens and obviously, > the length of the boom. > > The boom on my boat is over 11 ft. and I found that 2 lines wasn't enough > (even with a pretty stiff sail cloth and full battens); I modified it to > three lines. The lines are spread, generally, evenly along the boom. You may > want to have shorter distances closer to the mast (more sailcloth to catch). > I did attach the top lines to the spreaders about 15 cm from the mast (far > enough to leave some opening, close enough that the leverage is not too > much). I don't have any problems with the battens catching on the lazy jacks > - I loosen them before hoisting the sail and I make sure that I am right up > wind when I do so. > > If you want to fiddle a bit with the arrangement, try to come up with a > system where you can take all the lines all the way to the mast. Even one > side would help a lot. There are numerous ways of doing it. I was about to > implement one of those ideas, but I found that I never have problems with > battens catching so there was no point in complicating what was working fine > already. > > I have a Boomkicker, so there is no issue of supporting the boom with the > jacks (though when I installed them initially, I had a topping lift). > > Good luck > > Marek > > 1994 C270 "Legato" > Ottawa, ON > > -----Original Message----- > From: CnC-List [mailto:cnc-list-boun...@cnc-list.com > <mailto:cnc-list-boun...@cnc-list.com>] On Behalf Of Steve Thomas via CnC-List > Sent: Wednesday, April 19, 2017 22:28 > To: cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com> > Cc: Steve Thomas <sthom...@bellnet.ca <mailto:sthom...@bellnet.ca>> > Subject: Re: Stus-List Lazy Jack advice > > Lazy jacks can supplement or replace the function of the topping lift, and if > you have any inclination to use them in that fashion then Dave's comment > requires careful consideration. The main sheet can put on quite a load. > > As for the total number of lines to the boom, remember that the purpose is to > stop the sail from falling to the deck. All else being equal, more is better, > but the number of lines included in kits for a given boom length from the > major manufacturers is a good place to start. I have a Harken 2 line kit on > my 27, and find it adequate, but I also have full battens in the main sail > which helps a lot. > > On the subject of battens, separate from questions surrounding lazy jacks, > properly adjusted full battens can maintain a good aerofoil shape in > extremely light air. It is a wonder how the boat will ghost along sometimes. > > Steve Thomas > C&C27 MKIII > Port Stanley, ON > > ---- David Kaseler via CnC-List <cnc-list@cnc-list.com > <mailto:cnc-list@cnc-list.com>> wrote: > I'm no expert as I have no lazy jacks and have never used them but my concern > would be the potential of putting extra stress on the spreaders causing them > to become misaligned. > Dave. Kaseler > SLY, 1975 C&C 33 > > Sent from my iPad
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