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Old 09 September 2002, 00:35   #11
Country: Greece
Boat name: SUN KISS II
Make: Nuova Bat 9 Falcon -
Length: 5m +
Engine: Outboard Mercury 115
Join Date: Jun 2001
Posts: 639
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Gert-Jan, Charles

Either way could you please explain what the "chine walking" is ?
If Gert's opinion is correct, I can't think of any boat that doesn't use this edge !!!
By the way English is not my mother language either, so please use simple terms.


Michael a.k.a "Bat Falcon"

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Old 09 September 2002, 03:44   #12
John Kennett's Avatar
Country: UK - England
Town: Brighton
Length: 3m +
Join Date: May 2000
Posts: 6,678

Looks like we're ganging up on you -- see below!


Chine walking is an effect caused by a deep V hull at speed, where the hull is lifted so far out of the water that there is very little lateral (sideways) stability.

The result is that the hull falls over to one side. As the chine makes contact with the surface of the water the force then pushes the hull back the other way, creating a dramatic and potentially dangerous motion.

Most hull designs these days feature some sort of modification to the plain deep V to help counter this -- planing pads, spray rails and variable V hulls can all help, although they are not necessarily the perfect answer.

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