An old, baggy main will create more weather helm, and reduce the need for rake, mostly because the draft moves aft. The jib or genoa doesn't have nearly as much effect. -----Original Message----- From: John Schinnerer Sent: Wednesday, June 20, 2018 5:10 PM To: montgomery_boats@mailman.xmission.com Subject: Re: M_Boats: Bow pulpit. My boat did not come with a bow pulpit. Is there any resource for getting one made or used.
On Tue, Jun 19, 2018, 1:39 PM , <jerry@jerrymontgomery.org> wrote:
Jason- the 17 will sail far better with about 10 or 12" of rake- the exact amount depends on what kind of shape your main is in.
What is the correlation between rake and new vs. older sails, Jerry? In other words - a nice crisp brand new sail works best with more rake, or less rake? Older sails better with more rake, or less rake? For those curious about angles that correspond to 10-12 inches, 10 inches aft of vertical at masthead is ~2.2 degrees. 12 inches is ~2.7 degrees. I did angle calcs when getting my new stays. With turnbuckles at 50/50 fore and aft, I am at ~1.2 degrees aft rake (about 5.5 inches at masthead). Handy trig tool (lots of these online): http://www.pagetutor.com/trigcalc/trig.html cheers, John -- John Schinnerer - M.A., Whole Systems Design -------------------------------------------- - Eco-Living - Whole Systems Design Services People - Place - Learning - Integration john@eco-living.net - 510.982.1334 http://eco-living.net http://sociocracyconsulting.com