I'am currently looking at my keel box construction. First this is the former German Zero with the attempt to construct a lifting system for the keel blade.
I have loosen the aluminium plate on top, next remowed the 15 mm nylon distance plate, under the distance plate two relatively small nylon plates to keep the blade in place one in front and one plate in the back. nothing on the sides down in the box. As I can understand from this forum and other sources, this is not the original construction.http://martin-zerosailing.blogspot.com/
My question is: How was this constructed originally? anyone with drawings/pictures/verbal description of the construction