Sailrite has some of the original handwritten sail sizes and dimensions: http://fabric-calculator.sailrite.com/ShowAd.aspx?id=5832&SourceID=%200%20&BoatName=MONTGOMERY+17 Also I had a local friend who's a big boat engineer/sailboat cruiser and racer/local rep for Mack Sails come measure my flush deck 17 to get it right on the money for my odd duck of a 17. We climbed all around the boat for a while with a long tape measure. You probably have the same ability to find a maker there. There are a few articles in the depths of MSOG.org where Jerry M talks about his "suit" of sail for the M17 and the Sage 17, though that's a fractional rigged boat. He was a big fan of a super light BIG reacher as well as a 150. Both of which I have if there's any interest in dimensions (not too many flush decks though). Have fun! New sails from my late 70's M17: wow! Tim On Fri, May 27, 2016 at 1:40 AM, GILASAILR--- via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
Henry,
I have a rigging drawing dated '1973' that shows the 'J' dimension as 6'-7" - you are fine at that number - that is approx. .04" less than 'J' - as my grandson likes to say (20 mo) "OOhh myy!
We can ask Jerry if the 7.16' is for the flush deck??
Have Fun Go sailing.
GO
In a message dated 5/26/2016 8:33:50 P.M. US Mountain Standard Time, heinzir@gmail.com writes:
I have seen two different figures published for the "J" measurement of the M17: 6.58 ft and 7.16 ft. I'm guessing that the longer one is for the original (and newest?) boats that have the forestay pinned at the tip of the bow and the shorter is for the newer style boats that have the forestay pinned back from the bow about 6".
I think I ordered sails using the shorter "J" measurement and shortchanged myself! My 150 is actually 137 and my 135 is closer to 125!
Henry
On Thursday, May 26, 2016, <swwheatley@comcast.net> wrote:
Genoa size is luff perpendicular (LP) expressed a percentage of the J measurement. LP is the length of a line drawn from the clew to the forestay intersecting the forestay at a 90 degree angle. The J measurement is the length of a line from the forestay pin back to the mast intersecting the mast at a 90 degree angle. On an M17 it is an imaginary line because the mast doesn't actually extend down that far down. There is some conflicting info out there but I believe the J measurement on an M17 is approximately 6 1/2'. Maybe someone else can chime in with the exact number. Measure your LP and compare it to that to determine what you have. For example, an LP of 10' corresponds roughly to a 150 genoa.
If your genoa is an older hank-on, it is probably a 150. If it is on a roller-furler, it might be a little smaller. I run a 135, which is a popular size for a roller furling genoa.
----- Original Message -----
From: "Jazzy" <jazzydaze@gmail.com <javascript:;>> To: "For and about Montgomery Sailboats" < montgomery_boats@mailman.xmission.com <javascript:;>> Sent: Thursday, May 26, 2016 2:41:37 PM Subject: M_Boats: Genoa size...
Hi all, was just pondering my tired sails. How does one know what size Genoa is installed? Thanks!
Couple of updates...
Stoked for Mem Day...trailering to Pleasant Harbor Marina where we have a slot for a night, full amenities and a motor couple coming to join the festivities. Should be good pirate fun.
Last week I took my friends son out. He's 18 and had never been in a sailboat, we spent a few hours tooling around the harbor, I worked him hard on terminology, parking, stopping at random buoys, starting and stopping the motor, approaching objects slowly... boy was he surprised when I hopped off and told him to take a solo lap at the end of the day! Hahaha. Reminded me of flight instructor days. His dad told me afterward he couldn't stop talking about it. Now dad wants to go. Maybe got us two new sailors... do share your boats and teach some youngsters! What's a dock ding or two compared to passing the torch?? Hahaha. A bonus was that I got to see my boat cruising around. They are quite graceful and salty looking when off their trailer aren't they ? ;) Much sexier than the Harbor 20 that was buzzing around.
Found a slip for 110 a month 8 minutes from home...sooo tempted. Comments? Is the bottom going to hell in a hand basket?
Jazz
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