Custom Line Building Navetta 42 After introducing the Navetta 42 at the Yachts Miami Beach Show, construction is well underway. The design is a collaboration between the Ferretti Group and Studio Zuccon. The interior is by Studio Zuccon as well. The first hull is under construction and slated for delivery in 2018. The semi displacement yacht is being built in GRP materials throughout (hull and superstructure).