Quote:
Originally Posted by Bushwacker
More lift = more drag, so it might be drier but it won't be as fast as a VDH for the same power and weight. Just like on airplanes, the more you deflect a fluid, the more lift you'll get, but you'll also get more drag along with it, unless you can do something clever to improve the L/D ratio. Moesly's idea with the VDH was to improve L/D by deflecting the water from the keel to the chine as gradually as possible, while also introducing a boundary layer of air to reduce drag. His testing proved that it worked, producing a hull that was about 10% faster for the same power and weight as a conventional constant deadrise hull with flat strakes!
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Bushwacker,
I'm very familiar with Moesly's VDR hull design and by no means trying to compare this boat to a Seacraft. But, on most hulls these strakes will add lift, reduced engine load at lower speeds and improved speed and handling at high speeds regardless of the added drag. The attached pictures show similar strakes that were added to a 66' sportfisherman. They dramatically improved it's ride and they are only 5/8" tall...