Re: Stepping a Cal 28 mast

Thank you all for your advice. It is true that a tabernacle exerts a lot of counter forces, especially early in the lift. I know of one that ripped out of the deck and of course the mast came down hard. When we were putting my brother's mast up this weighed heavy on my mind of course. We started up with just the main sheet but it felt like it was working too hard and working off axis shearing against the tabernacle. Adding the second lifting line helped a lot. Brian Sorbo > On Dec 25, 2014, at 12:17 AM, Ca… [at] yahoogroups.com wrote: > > Cal Sail List Group > 4 Messages Digest #4124 > 1a Re: Stepping a Cal 28 mast by "Adam Thorp" th… [at] ymail.com > 1b Re: Stepping a Cal 28 mast [2 Attachments] by "sailor7312 ." cal29_628 > 2a Cal 39 MK I Surfing by andy_gto_69 > 2b Re: Cal 39 MK I Surfing by "Kerry Coyne" bodega87 > Messages > 1a Re: Stepping a Cal 28 mast > Wed Dec 24, 2014 10:12 am (PST) . Posted by: "Adam Thorp" th… [at] ymail.com > The method in the video looks clunky to me when compared to a tabernacle > setup, simply lowering the mast forward using the mainsheet's mechanical > advantage as you described previously. > > On Mon, Dec 22, 2014 at 6:51 AM, 'sailor7312 .' sa… [at] gmail.com > [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > > > > > > > This method has served me well on my cal 29. > > > > https://www.youtube.com/watch?v=d4mHCOHu2Dk > > > > In this I used an old cal 20 mast that I stepped behind my 29 mast and > > used a 4:1 purchase to raise and lower it. > > You don't need to fabricate anything extravagant under the deck to support > > it, a 2x4 and some plywood top and bottom work just fine. > > > > Key point, if your lifting point is below center, the guy at the mast butt > > has to not let go, period. > > I have made my lifting rig from 3 16ft 2x6's also. > > Have done this 3 times in the bast 8 years w no problems. I like the > > center pole vs an "A" frame. > > Keep it in column and it is much more rigid in my opinion. > > > > Jim > > East Coast Cal 29 sailor. > > > > > > > Attachment(s) from Adam Thorp > 2 of 2 Photo(s) > image (1).jpg > image.jpg > Reply to sender . Reply to group . Reply via Web Post . All Messages (6) . Top ^ > 1b Re: Stepping a Cal 28 mast [2 Attachments] > Wed Dec 24, 2014 11:17 am (PST) . Posted by: "sailor7312 ." cal29_628 > my dad's f-24 trimaran had a tabernacle setup from the factory. I would > take the single pole behind the mast any day. > The loads are high on the tabernacle when the mast is low. The shrouds > have to be in line w the hinge point or else they will tighten or loosen > depending on where they are. The load at the hinge is very high especially > when the mast gets a little out of column. > > The pole behind the mast keeps loads low and does not require any expensive > fabrication. > > If you go the tabernacle route, here is a decent thread on the loads > involved. > http://forum.woodenboat.com/showthread.php?62012-Mast-lowering-rig > > On Wed, Dec 24, 2014 at 1:12 PM, Adam Thorp th… [at] gmail.com [Cal_Boats] < > Ca… [at] yahoogroups.com> wrote: > > > > > [Attachment(s) <#14a7da153e91decc_14a7d7fff6bb7f51_TopText> from Adam > > Thorp included below] > > > > The method in the video looks clunky to me when compared to a tabernacle > > setup, simply lowering the mast forward using the mainsheet's mechanical > > advantage as you described previously. > > > > On Mon, Dec 22, 2014 at 6:51 AM, 'sailor7312 .' sa… [at] gmail.com > > [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > >> > >> > >> > >> This method has served me well on my cal 29. > >> > >> https://www.youtube.com/watch?v=d4mHCOHu2Dk > >> > >> In this I used an old cal 20 mast that I stepped behind my 29 mast and > >> used a 4:1 purchase to raise and lower it. > >> You don't need to fabricate anything extravagant under the deck to > >> support it, a 2x4 and some plywood top and bottom work just fine. > >> > >> Key point, if your lifting point is below center, the guy at the mast > >> butt has to not let go, period. > >> I have made my lifting rig from 3 16ft 2x6's also. > >> Have done this 3 times in the bast 8 years w no problems. I like the > >> center pole vs an "A" frame. > >> Keep it in column and it is much more rigid in my opinion. > >> > >> Jim > >> East Coast Cal 29 sailor. > >> > >> > > > Reply to sender . Reply to group . Reply via Web Post . All Messages (6) . Top ^ > 2a Cal 39 MK I Surfing > Wed Dec 24, 2014 4:09 pm (PST) . Posted by: andy_gto_69 > Hi, > I was wondering as to whether or not the Cal 39 MK I (or the other 39' variants) will surf/plane easily, when going downwind, like the Cal 40 does? And also, what kinds of conditions it takes to get the boat to do so? > > > Thanks > Reply to sender . Reply to group . Reply via Web Post . All Messages (2) . Top ^ > 2b Re: Cal 39 MK I Surfing > Wed Dec 24, 2014 5:12 pm (PST) . Posted by: "Kerry Coyne" bodega87 > Almost all boats can surf. Planing is another thing altogether. > > Sent from my iPhone > > > On Dec 24, 2014, at 7:09 PM, an… [at] yahoo.com [Cal_Boats] <Ca… [at] yahoogroups.com> wrote: > > > > Hi, > > > > I was wondering as to whether or not the Cal 39 MK I (or the other 39' variants) will surf/plane easily, when going downwind, like the Cal 40 does? And also, what kinds of conditions it takes to get the boat to do so? > > > > > > > > Thanks > > > > > Reply to sender . Reply to group . Reply via Web Post . All Messages (2) . Top ^ > VISIT YOUR GROUP New Members 2 > • Privacy • Unsubscribe • Terms of Use