Regarding the Vire my description of the Vire was more "tongue in cheek". It's hard to be negative about something you used to love. In the 8 years I owned the boat I think the Vire only worked reliably for 1 season and was totally usless for 3-4 seasons. It did have its benefits though as I got very good at singlehanded sailing without an engine even in crowded marinas.

Hello. I'm a former owner and currently "without boat". I used to own hull number 15 and the best build date I could determine was 1972.

There was a "15" stamped into the fibreglass below my trusty Vire engine. I think if you look really hard you will find hull numbers on every hull. But that's just my opinion with no facts to back me up.