Edward: There is no hard date or hull number. The transition was late-middle-ish 80s. For the M15's two ways to check - Strong magnet Looking under the forward/center cover under the forward end of the vberth. Besides being filled with blocks of flotation foam there is a hump of ballast just forward of the bulkhead just forward of the porta-potti. This is for trim and not present in the lead ballast 15s. For the 17s in general of they have a cast iron centerboard they have steel ballast. If the 17 has a M15 centerboard and a mid-ish-80s boat use a strong magnet as there is a chance the boat has steel ballast. Late-80s and newer 17s have. :: Dave Scobie :: M6'8" #650 :: SV SWALLOW - sv-swallow.com :: former owner M17 #375 SWEET PEA - m17-375.com :: former owner M15 #288 SCRED - m15namedscred.wordpress.com <<-- new site! On Mon, Jul 5, 2021, 10:41 AM Edward Epifani <edepifani@hotmail.com> wrote:
Does anyone know the cutoff date sail number for the transition to lead ballast? Jerry, if you are there, can you weigh in?