39 foot Inshore Foiler Design
       
     
39 foot Inshore Foiler Structure
       
     
39 foot Inshore Foiler Safety
       
     
39 foot Inshore Foiler Design
       
     
39 foot Inshore Foiler Design

The boat is a catamaran with a significantly large nacelle on centerline. This is raised above the water at rest. The vessel is intended to operate 99% of the time in foiling mode, already with 6 knots of wind (downwind). The foil arrangement is novel, with two primary foils aft and a forward centerline rudder and stabilizer. This layout is analogous to a canard type aircraft.

When the vessel is sailed, the crew will not move from side to side. They will remain in the forward nacelle cockpit and operate the boat from there. Stability or righting moment will be provided by hydrodynamic forces, not by movement of weight. This means that the primary lifting foils will have differential lift.

39 foot Inshore Foiler Structure
       
     
39 foot Inshore Foiler Structure

The structural layout is dominated by the nacelle in an otherwise 2 crossbeam, 2 hull design. The forward and aft extent of the hulls are planned to be bamboo/epoxy/balsa sandwich for carbon consignment reasons. The cross structure is carbon/epoxy/foam to master the loads in a light craft. Aerodynamic performance being very important, all cross structures have lightweight fairings of renewable materials.

39 foot Inshore Foiler Safety
       
     
39 foot Inshore Foiler Safety

At every level, safety of the crew and VIP on board is paramount to a successful racing series. The canard layout has inherent safety advantages. The central navigation cockpit; offering a close-up experience for the VIP on board, features closed watertight canopies, 5 point restraint, unparalleled direct RIB access, and escape panels. The bow planes on the hulls give a final level of protection to inversion, but even inverted, the foiler has been engineered to be safe.