The longest keel frame was laminated on the garage floor today. This is the aft most frame and has no keel bolts through it but it does share grounding loads. Grounding loads are those extreme forces generated when you are flying along at eight knots and hit an immovable reef. The rear frame structure has to be strong enough to stop the back of the keel breaking the backbone. There are three frames sharing these grounding loads and they are all tied together fore and aft with a keelson structure and with the sides of the engine bearers. As a bonus there is a big frame that forms the front of the galley and engine housing and that is right above the aft end of the keel. By my calculations if we hit a reef all that will happen is the bow will dive down while the stern rises up and the water will act as a shock absorber. There are two more frame so do but these are the two shortest ones at the front of the keel so just two more days work to finish all seven frames.
The longest keel frame that will support the engine bearers.