The shape of the 64 Convertible's hull is similar to earlier designs, but with an important difference. As in the days of Jack Hargrave's designs for the 60, 65 and 70 convertibles, the hull remains a modified-V for the new 64, with deadrise gradually decreasing from the bow to the transom. One change, though, is not readily apparent either on the photos shown here or from dockside, and that is the shape of the hull's underwater forebody. Hargrave always gave the bow sections just a hint of concavity. My own hull designs for Hatteras, including those of the 54 and 60 convertibles, carried bow sections that were essentially straight. The new 64 Convertible, as with other models recently designed in-house at Hatteras, incorporates a slight degree of convexity forward. The theory is that convex sections will help reduce impact accelerations in heavy seas; I'll be looking forward to seeing whether the effect will be apparent to the average captain.