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The Hull Truth: SeaVee Z
SeaVee's stepped-hull boats provide sure handling in a variety of sea conditions. For a complete performance report of the 390-Z, look for our test during 2014.
Case Study: Stingray's Z-Plane Hull
Stingray president Al Fink once said his goal was "to make a boat as fast as it can be, but safe and easy enough for your grandmother to drive."
Stingray, which introduced its CAD-designed and patented hull in 1989, knows plenty about the pluses and minuses of the V-bottom boats with lifting strakes. Typically, lifting strakes are roughly parallel to the water's surface and the keel -- until the boat turns, when they dig in and force the driver to slow down. They also create air bubbles in the water, reducing the propeller's bite. Lowering the motor helps, but that creates drag. Speed is lost.
|Stingray's Z-Plane Hull|
The Z-Plane Hull minimizes these problems by avoiding right-angled strakes. The hull's running surface is actually three shapes nested, becoming steeper as they approach the chine. These running surfaces have strakes that vary from right angles by about five degrees.
The result? Less unwanted grab and ventilation in turns. The motor can be mounted higher, which reduces drag. Drive, Grandma.