I'm just copying the below from the archives, but I can't offer any 
additional help, partly because I don't have a 15.

Also I know nothing about Macs, but the MSOG menus are in Javascript so 
make sure your browser is set to see Javascript (different from Java). You 
may want to buy a book or find a web site with more info on Macs.  It's 
almost imperative these days to upgrade computers every two years or so to 
keep up with what's out there. At some point, the older computers just 
can't handle the software. There are also free courses and instruction at 
senior centers and some libraries.


From: M_Boats (Steve R)
Subject: M_Boats: M-15 trailer
Date: Sun, 17 Mar 2002 05:44:54 -0800 (PST)
-----------------------------------

Message-ID: <20020317134454.A26852755@sitemail.everyone.net>
wrote:
 > a little help needed please
 > am helping a friend move a m15 no trailer....
Here is what I did... too early for much math.
The first set of measurements are from the driveway to the boat/trailer. 
Actually to the top of the bracket - bottom of the bunk board.
The second set are from the bow back. Middle of the bracket.
The third set are from the centerline to the right side. Middle of the bracket.
My trailer has three ^ribs^. There is a support from each rib for the 
bunkboards.
Units are inches.
1) Vertical
Driveway to stem 67 3/4
Driveway to front bunk support 29 3/4
Driveway to mid bunk support 29 even
Driveway to rear bunk support 30 even
Driveway to bottom of keel 19 even
2) From bow back
Stem to front bunk support 80 1/2
Stem to mid bunk support 116 1/4
Stem to rear bunk support 150 1/2
Stem to c/l of axle 98 1/2
3) From centerline out
Centerline to front bunk support 22 1/4
Centerline to mid bunk support 22 even
Centerline to rear bunk support 21 1/2
Not guaranteed to hold up in a court of law, but should get you close.
Not necessarily the most optimum arrangement - I plan to move the boards 
out and higher.
Good luck!
Steve R.
M-15 #119
Lexington, KY
 From montgomery_boats@mailman.xmission.com Sun Mar 17 14:59:30 2002


At 09:52 AM 6/13/03 -0400, you wrote:
>i have an older mac
>cannot seem to query the archives
>what i need is a posting of measurements that was done by a member for
>building a trailer for the m-15
>can some some w/ a newer computer please help me
>god bless
>k
>
>_______________________________________________
>http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats


------------------------------------------
Doug King
M-17 #404 "Vixen"

Montgomery Sailboats Owners Group Web site: http://msog.org
Email: mailto:msog@msog.org