X-15 Class UCS Foil - Pack

A high-aspect platform optimised for efficient one-design racing, balancing lift, glide and top-end speed for competitive performance across a wide range of conditions.

Developed using Martin Fischer and Mathieu Durand’s computational auto-optimisation process, generating highly refined, organic wing geometry beyond conventional manual design methods for exceptional hydrodynamic efficiency.

Combines early take-off and accessible low-speed lift with efficient acceleration and impressive top-end speed, giving racers a wide usable performance range as conditions and speeds change around the course.

A refined, low-drag profile minimises resistance through the water, allowing the foil to accelerate efficiently, maintain speed and deliver consistent performance throughout the race.

Three sizes are optimised for different riders and race conditions. The 560 cm² prioritises lighter riders, higher speeds and stronger winds; the 880 cm² is the go-to all-round race option; and the 1200 cm² provides accessible performance and increased lift in lighter winds.

The Universal Connection System (UCS) delivers up to 3x the torsional stiffness of previous drop-through style connection systems. Double rows of side-by-side mast-fuse screws distribute loads both laterally and longitudinally, creating maximum stability, while the supported mast-fuse saddle preserves the fuselages full structural integrity by eliminating the material cut-outs required by traditional drop-through systems. A unique sleeve-saddle fuse-wing connection provides further stability and support for the stiffest overall connection between mast, fuselage and front/tail wings.

Learn more about the X-15 Class, one-design wingfoil racing and upcoming events.

X-15 Class >