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Brief Summary
The Stingray 212SC has the builder's "Z-Plane" hull actually “steps” inward toward the centerline in three stages as seen in the drawing above. The arrows point to the horizontal planes which give lift without the second surface which causes drag. Most boats in class have V-bottoms with "strakes" that give the boat lift with their horizontal surface, but they also have a vertical surface which serves little useful purpose and adds drag.