Originally Posted by AlexWind
Hi, I was wondering: which are the causes that make constructors chose tuttle or deep tuttle boxes for their boards.
I see the 2008 iSonic 122 goes for deep tuttle while the 2007 one was on tt system..
With the tail of iS122 getting wider and wider over the years for maximum efficiency in light wind conditions, the structural integrity of a standard Tuttle box is becoming limited with fins lenght over 55 cm, especially with heavy riders and large sails. So in 2008, iS122 has been fitted with a deep Tuttle box to safely accomodate fins approacing this size limits.