Hi, I have the same problem here.
The yard kind of fixed it (just resealed the aft part), but that lasted only for 1 season.
Do you know where I can buy the window replacement?
I would like to take part in a regatta in Newport with my Catalina 309 and I was wondering how to determine the class numbers that I need to put on the main sail.
Are they standard for the Cat 309 or I need to higher somebody to measure the boat and rank it in a specific class?