Thanks all for great information here.
I am planning on buying 2 new PA 12s this year, taking delivery in October. The dealer is 500 miles away and I have to design a roof rack/hoist system for my truck that will be pulling a fifth wheel RV. Since the roof of the truck will expose the boats to significant sunlight and heat, I wanted to do it the right way without regard to cost. Correct me if I'm wrong, but I plan to use 2 PA 12/14 cradle sets (72020401). I have already purchased one to help with the design.
There are only two dimensions that I do not have at this point. These dimensions affect the design in a way that cannot be changed later. I contacted Hobie, but they could not help and suggested I ask here.
1. The Hobie cradle sets are centered at 67", but I need the distance from the CENTER of the rear cradle to the rear END of the boat. One might think the boat is centered on the cradles, but my observation is that the boat weight is skewed to the rear and the cradle designer may have intended for less of the boat to overhang on the rear.
2. I know everyone has rigged their boat differently and this may vary slightly, but I needed another dimension. That is the approximate lengthways center of gravity or balance point of the PA 12 when it has the seat and other easily removable items removed. For example, if you placed a piece of pvc pipe under the boat and attempted to balance it, what would be the distance from the PIPE CENTER to the rear END of the boat.
After I have this built, I will share the design and pictures with you all.
thanks very much for any help,