Hi folks, According to the drawing Jerry sent me, the working jib on the M15 is a 127.5%, with an almost full hoist luff of 15' (93% of max forestay length ). Jerry also drew a 90% with a 15' luff and a medium high clew. Nice balance between pointing ability and keep speed up on a reach. A good planform on all points of sail.. In addition, Jerry drew two storm jibs, one a 50% with a luff of 7' and the other and the other a 55%, with a luff of8.4'. I like the 55% one with the longer luff better. The shape looks like it's a slightly better pointer than the 50%. Both look like a pretty good reachers. the COE of the sailplan is about 5" higher on the taller sail, which isn't really significant when you've got a couple of reefs in the mainsail. Fair winds, Judy Judy Blumhorst Hyde Sails of Northern California www.judybsails.com judy@judybsails.com cell: 925.208.1692 fax: 925.820.2327 skype: judith.blumhorst www.HydeSails.com/NorthAmerica ________________________________ From: jerry montgomery <jerry@jerrymontgomery.org> To: montgomery forum <montgomery_boats@mailman.xmission.com> Sent: Thursday, March 29, 2012 3:14 PM Subject: M_Boats: Fw: M15 Foresail Size?? Sorry 'bout that- so much for my memory! Harry and Judy are totally right- 135, or from measuring the sailplan, 138. I just dragged out a sailplan and measured it carefully. Maybe the M 17 is 109- or maybe the M-12. Or something. jerry ----- Original Message ----- From: "W David Scobie" <wdscobie@yahoo.com> To: <jerry@jerrymontgomery.org> Sent: Thursday, March 29, 2012 2:38 PM Subject: Re: M_Boats: M15 Foresail Size?? jerry: responding to you off-list. 128% is what stated by harry as the stand M15 jib on the Glesser M15 sail order from a few years ago. this is also what is quoted on the msog.org site - http://www.msog.org/specs/m15sailmeasure.cfm let me know which is correct so i can put it in my note. maybe you need to call harry? - dave --- On Thu, 3/29/12, jerry montgomery <jerry@jerrymontgomery.org> wrote:
I'll have to agree to disagree with you on this one, Dave. If I remember correctly the lapper for the 15 is a 109; much larger and you would have to sheet it on the rail and pointing would suffer. You could probably go to about a 112 and still get it inside the shrouds, but then it would need to sheet a bit further aft.
Jeff, if you go to a sailmaker who doesn't have a sailplan, have him email me and I'll send him one. Both Harry P and Judy B have sailplans and do very good sails.
jerry ----- Original Message ----- From: "W David Scobie" <wdscobie@yahoo.com> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Sent: Thursday, March 29, 2012 1:23 PM Subject: Re: M_Boats: M15 Foresail Size??
the jib currently made by Elliot/Pattison Sailmakers for the M15 is 128%. get a jib the size that E/P is now making.
for your quoted wind speeds, as you stated, a second reef point is nice insurance. in my opinion (IMO) you should tuck in a second reef when the wind goes about 17/18 knots on the M15. once the wind gets above the low-ish 20s you need a smaller jib.
:: Dave Scobie :: former M15 owner - www.freewebs.com/m15-named-scred :: M17 #375 SWEET PEA - www.m17-375.webs.com :: Sage Marine - www.sagemarine.com
--- On Thu, 3/29/12, Jeffrey Johnston <frjeff@gmail.com> wrote:
If I'm to order new main and jib for my Monty 15 (which I'm likely to do soon):
What size range (100%, 110%, 120%, etc) jib makes the
most
sense. I believe the boat came standard with a 100%. I can only afford one jib at present.
My sailing will be primarily near shore Great Lakes (Lake Huron, Tawas Bay, North Channel, Georgian Bay) and smaller inland lakes. I'm guessing my winds typically to be 5-18 MPH. My main will have two reefs.
Thanks for any and all advice.
*Jeff+* Molōn labe!
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