Check out these reverse strakes
 

1966 Chris Craft Sportsman Seaskiff 18' fiberglass, thought i'd share these neat reverse strakes on this puppy. Bottom is 3/4" glass. she's wide / stable but not much of a deep V. Had a v-6 155 Buick w/OMC stringer drive in it and did 44MPH :eek:

Hey hiliner, less posting more grinding! :D

HaHa, You got that right! Still spinning the wheels, waiting for the arrival of the 20 Seafari, shhhhh. Then i can get spinning the grinder instead of the brain. :p Potter that is!

That style of strake is much more effective for it's size than having a flat. Directs the water down rather than out providing more lift and a drier ride...

I never drove this boat but with a 155 v-6 buick engine and it did 44MPH, I figured these strakes helped. It's farely heavy and really wide. The hull bottom is 3/4" thick glass.

Anyone besides me not seeing the posted pictures? What have I got set wrong with this computer?

Can't see em in Ocala either Big Lew.

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!

This boat doesn't have much of a V at all. It's pretty flat with like a 6" skeg. Thought these strakes were kinda different you dont see often. Not sure why you guys cant see the pics. I attached them the only way i knew how.

Now I'm really interested in seeing what everyone is talking about. Any chance you can post a link to them? Not a BIG deal, just curious.

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.

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...

Hey Big Lew; I got a visual!

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.