I have a '97 Gulfstream and can measure it for you. NO -- The boat does not sit on the keel except for the forward bunks. You can measure your boat across the transom from where the hull turns into a flat chine on both sides. That's where I have my bunks supporting the boat with a very slight taper to the center of the boat on the front of the main bunks. In other words-- the bunks are closer inside measurement in the front then the rear. I also have centering guides on the side of the trailer. Once you get the bunks right and the centering poles set, you will be able to launch and retreive the boat by yourself. It just takes some planning and practice.
