Re: Single Berth 40' ers? Where are you now?
J/boats have plenty of singles. C7C 37/40R too. Take a look through the Sailboatdata site. When transoms got wider after the demise of the IOR, designers put doubles in back there because it was a/possible b/cheap c/ light and d/ appealed to consumers who spend their nights in marinas. You may find more singles in racing-oriented boats, like J/boats, and blue-water boats like Hallberg-Rassey.