PhantMan wrote:
... and here's the home page that may be helpful.
http://www.tanzer22.com/tpage.htm

That site also has a Tanzer22 owner's manual.
He
http://www.magma.ca/~tanzer22/manual.htm#T132

The section on the "Centerboard assembly" is exactly what you're
looking for and it has a link (Figure 21) to a drawing with
measurements.

You might consider joining the association. Looks pretty helpful to
me.

Rick