Got a feeling I probably know you sail6000 !
Might want to compare this attachment with the one form my earlier post. The one in above post is a "stock" NACRA 18 Square.

This attachment is one of the Category 1 boats built by Brad Johanson.

Identified in the photo -
At the bow = Fred Lemke (Then Michigan - Now Wisconsin)
At the stern left to right:
...Duane McDaniels (Pontiac Michigan)
...Chris Cordes (Jacksonville Florida)
...Bobby Bergsted (Toms River New Jersey - and the "pilot" of this square

I think I have a set of line drawings at home that I will post later. One is the NACRA and the other is the COYOTE.