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-   -   Check out these reverse strakes (http://www.classicseacraft.com/community/showthread.php?t=23916)

cdavisdb 05-02-2012 07:45 AM

There are at least a couple of boats around Sarasota with strakes like that. Hull sides look different, though. I'll try to get some pics if they are still there.

FlyingTime 05-02-2012 09:39 AM

2 Attachment(s)
Quote:

Originally Posted by Bushwacker (Post 201800)
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!

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...

WildBill 05-02-2012 04:11 PM

Hey Big Lew; I got a visual!

BigLew 05-02-2012 07:23 PM

Wild Bill, I look forward to seeing them.

Flyingtime: Veru interesting pictures. I can see how the strake design captitures air, thus softening the ride, but I really don't see a significant drop in the deadrise, unless it is aft of where we can see from the picture.

This maybe a little bit picky, but it seems that the boat in the picture is substantially bigger than any Seacraft and that might explain other issues as well.


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