I found a 5.7 blue arrows sail complete with mast and boom washed up on the beach at south perth this morning. The beach where the sail is located is next to the north bound lanes of the kwinana freeway right beside the green freeway signs that span the freeway just ahead of the south perth exit. Another guy and I pulled it up out of the surf, and it's weighted down with sand so it shouldnt get blown anywhere.
If it's yours and you need more information you can call me on 0421 206 004
Mark