Just for reference, the dimension of the pivot hole for a Sarns 30"
bull nose is 17 5/8" back from the nose.

--- In wingboats@yahoogrou ps.com, "johhnysrocket2003"
<johhnysrocket2003@ ...> wrote:
>
> Ken ,I found his on the DN articles page. Its similar advice to
yours.
> I wish it gave an over all length and a pivot hole location.
>
> If you could guess is this a 30'' or a 36'' long runner?
>
>
> http://www.idniyra. org/articles/ runner_terms. htm
>
>
>
> If it is a 36'' long should I use these dimensions on the next link
> for pivot hole location and work the rest of the numbers from there?
>
> http://www.idniyra. org/articles/ inserts.htm
>
> I am thinking of 36'' for the rear and 26'' or 30'' for the front.
> I'm not crazy about the bullnose profile . I will put more entry
curve
> so the runners can have more of a chance of riding up an
obstruction.
> I'm thinking 4'' high overall with no down word turn on the top
> surface like the bullnose link drawing.
> We are thinking of trying D2 tool steel.The stiffeners will be
2 .5''
> x 2'' flat bar drilled an tapped mounted on edge to form a tee shape
> when mounted.
>
> Where do you have your runners hardened?
>
> The second option is to go for 30'' rear with less .008 for stickier
> conditions.
>
> Which pair would you build first?
>
> Thanks
> John
>