'Ayrton' 63 Design Unveiled By ISA Today Palumbo Superyachts brand ISA unveiled the design for the 'Ayrton' line of yachts. Yes, line because there are three models proposed by the yard. The designs are by Enrico Gobbi of Team for Design and encompass 50, 63 and 70-meter models. The Naval engineering is by Palumbo Superyachts. This article will be focused on the middle model, the Ayrton 63.