Very interesting news. Gunboat, builder of high-end racing/cruising catamarans, has promised the G4, a new all carbon fiber 40 foot long catamaran, in early 2015. The drawings and video have shown C-foil daggerboards and T-foil rudders. C-foils allow “foil-assisted” sailing. The C-foils develop lift and are capable of supporting most of the catamaran’s weight but will not lift the boat entirely out of the water. Since at least last Spring, however, there have been suggestions that Gunboat has something more ambitious in mind. They may be offering fully-foiling daggerboards, referred to variously as J or L foils, which would allow the G4 to fly like an America’s Cup AC 70, qualifying as the first flying cruising catamaran. Gunboat’s founder, Peter Johnstone, has said of the G4 — “It’s the baddest-ass coastal cruiser ever.”
In an interview with Sailing Anarchy from last May, Gunboat team member Rudo Enserink revealed the following: