Go Back   Starboard Forums > Free Forum > Tuttle and Deep Tuttle

Thread: Tuttle and Deep Tuttle Reply to Thread
Your Username: Click here to log in
Image Verification
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Additional Options
Miscellaneous Options

Topic Review (Newest First)
18th January 2008 03:08 PM
AlexWind Thanks for the replies!
18th January 2008 04:38 AM
Jean-Marc
Quote:
Originally Posted by AlexWind View Post
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.

Cheers !

JM
13th January 2008 12:42 AM
steveC Hi Alexwind,

I think you're on the right track about larger fins benefiting from a larger base component. Also, it's important to keep in mind that fin box systems must be structurally integrated with both the bottom and the deck of the board. As the thickness of higher volume boards grow, the fin cavity area becames larger, thereby increasing the bearing surface potential. But I think that the greater width of boards over the last 10 years or so has mandated the need for larger fins to properly balance the equation. With the huge leverage that large fins put on the finbox structure, it just makes good engineering sense to beef up the fin base to spread out the overall stresses involved.

Still, as you correctly noted, one can still use a standard tuttle base fin in a deep tuttle box. I think that the way that deep tuttle boxes have been structurally engineered, the design can accommodate the standard sized tuttle base fin. However, all things considered, I think there are certain limits. For instance, I feel it's fair to say that a 70cm fin truly needs the deeper base to avoid undue stress on the box structure. Yet, I seriously doubt that one could find a larger fin (50cm and up) with a standard tuttle base, or a Powerbox base for that matter. The design of the latter finbox configuration just isn't sturdy enough to handle the leverage forces that larger fins impose.
12th January 2008 07:22 PM
AlexWind
Tuttle and Deep Tuttle

Hi, I was wondering: which are the causes that make constructors chose tuttle or deep tuttle boxes for their boards..

I guess deep tuttle is a bit more "fixed" to the board, maybe stronger box for bigger fins..

I see the 2008 iSonic 122 goes for deep tuttle while the 2007 one was on tt system..

What do you think about that?


p.s. of course you can use tuttle fins in deep tuttle fin boxes and not viceversa but is a tuttle fin working fine on a deep tuttle box?

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT +7. The time now is 07:00 AM.