One problem with jackstands is settling. The legs dig a hole in the ground. Many boatyards don't check their stands after they block the boat. When my boat is on the hard, I make it a point to visit the boat regularly and tighten up the jackscrews, before climbing aboard. I usually find that one or two need tighening, but it is important to not overdo it. The keel is supposed to support 90% of the boat weight and the jackstands carry only 10%. Brownell has a few videos that explain how their jackstands should be placed and how the chain is tensioned. https://boatstands.com/proper-use/ I occasionally check the boats around me to be assured they are safe. If I find they need adjusting, I ask the yard workers to check them. They usually thank me, and if the manager is decent, he will have his guys check all the stands across the yard. In my area, the boatyards are mostly gravel or loose stone and the legs of the typical jackstand are placed onto 4" plywood squares cut from 1/2" plywood. I made a set of pads for my boat's stands from 3/4" plywood and cut them 6" square to spread the load better. Boatyards don't allow owners to move stands, so any stand work has to be done discreetly, and quietly. C
> On 10/19/2023 11:00 AM EDT Matt Wolford via CnC-List <cnc-list@cnc-list.com> > wrote: > > > > FWIW, cradles are usually better than jack stands. My club in Erie > considered eliminating cradles a number of years ago (to save space), then > reversed course because cradles are typically more stable than jack stands. > > > > A related consideration is how the cradle is constructed. I modified my > cradle by having two pieces of steel beam welded to the cradle on each side > of the keel. The steel pieces were modified to hold pads which push against > the sides of the keel to prevent keel movement. I did this because – > according to yard personnel -- when a sailboat is pushed off a cradle due to > high winds, the movement usually starts at the base of the keel. > > > > From: Hoyt, Mike via CnC-List <cnc-list@cnc-list.com> > Sent: Wednesday, October 18, 2023 10:19 AM > To: 'Stus-List' <cnc-list@cnc-list.com> > Cc: Hoyt, Mike <mike.h...@impgroup.com> > Subject: Stus-List Re: winter storage > > > > Re mast up. A friend stored his C&C 33-2 with mast up and it blew over in a > winter storm. He now has no mast. > > > > With mast down possibly the reduced windage would have prevented the boat > from blowing over but certainly would have not resulted in a mast broken in > three areas. The boat was on a cradle. > > > > Food for thought > > > > Mike Hoyt > > Persistence > > Halifax, NS > > > > From: Bob Mann via CnC-List <cnc-list@cnc-list.com > mailto:cnc-list@cnc-list.com> > Sent: Wednesday, October 18, 2023 10:45 AM > To: Stus-List <cnc-list@cnc-list.com mailto:cnc-list@cnc-list.com> > Cc: Bob Mann <sailrm...@comcast.net mailto:sailrm...@comcast.net> > Subject: Stus-List winter storage > > > > Here in Michigan it's time to winterize our boats until April. For those who > store their boat with the mast up, do you leave shroud tension alone or do > you loosen the shrouds for the winter? Bob Mann Mystic > > > > > Here in Michigan it's time to winterize our boats until April. For those who > store their boat with the mast up, do you leave shroud tension alone or do > you loosen the shrouds for the winter? > > > > Bob Mann > > Mystic > > Please show your appreciation for this list and the Photo Album site and help > me pay the associated bills. Make a contribution at: > https://www.paypal.me/stumurray > Thanks for your help. > Stu >
Please show your appreciation for this list and the Photo Album site and help me pay the associated bills. Make a contribution at: https://www.paypal.me/stumurray Thanks for your help. Stu
