One source is this:https://sailboatdata.com/sailboat/montgomery-15 From the site PDF attached. On Thursday, October 27, 2022 at 11:55:19 AM EDT, George Iemmolo <griemmolo2@gmail.com> wrote: Having achieved 90yrs of age and sailed my M15, (Bucket List item), on the Rappahannock River this month out of Windmill Point, VA (Daughters home) I am ready to 'Swallow the Anchor' I am putting my M15 up for sale. I have misplaced my Spec sheet and was wondering if I could get one of the list members to respond with the information.so I can list my M15. Need LOA, LWL,Width,Weight, Depth CB up & CB down, Sail Area, Mast height @ WL. Will continue to lurk on the list now that I am an Armchair Sailor. Thanks for the many years of advice and information shared on the list . George Merry Helen II 96 M15 #602 "We Can Not Control the Wind But We Can Adjust Our Sails"