Hi Bob Becker, In one of the old Montgomery Newsletters there was an article on how to install a transom ladder on the M15. It was a process where you inserted a plywood backing plate through the starboard cockpit locker. If I remember correctly, you drilled two holes through the backing plate and inserted strings with a knot at one end. The strings were fed through drilled holes on the transom. You pulled the strings from the the rear of the transom and when the backing plate was against the transom you were able to secure it. My son, who was about 12 at the time, assisted by crawling through the locker from the cabin. It worked like magic. You will have to go through the old newsletters which you can find on one of the Internet sites. Have you replaced you centerboard pennant? I still have to replace mine. Sometime we'll have to sail together. My favorite SF Bay sail is a 13 mile run from Coyote Point to Redwood City. Rich Cottrell "Really" M15