The new refined aluminium foil section gives the best balance between light weight and increased strength for higher loads, so you can wing, SUP, surf and kite foil with confidence, making use of the fully interchangeable Sonar Foil System to extend your playtime on the water. Engineered to last, with exceptional strength to weight ratio, and our unique GeoLock system for a clean, direct feel with minimum resistance on the water. The AF72 mast is ideal for shallower waters, and prone surf foiling. The AF85 mast increases overall ride performance in choppy conditions.
Sonar AF72 or AF85 Mast
The new refined aluminium foil section gives the best balance between light weight and increased strength for higher loads. 30% stiffer than the AK mast yet only 13% heavier, the AF72 mast is ideal for shallower waters, and prone surf foiling. The AF85 mast performs across all disciplines and offers you more ride height to clear waves or to heel over for tighter turns. It is also more forgiving in rougher conditions.
GeoLock Load Bearing Connection
Engineered to last, our unique GeoLock tapered geometry locking system provides a more effective load-bearing connection between the Mast and Fuselage, locking them together, so they feel like one piece. Screws engage the GeoLock while the load transfer now takes place over the full cross-section of the mast profile, allowing for a more efficient load distribution and longer-lasting connection. Patent pending.
Easy recovery from surface breaching
In perfect harmony with any Front Wing, our dihedral-shaped carbon pre-preg rear Stabilizer provides control and riding comfort, allowing fast pivoting turns and easy surface breach-recovery. The Stabilizer's positioning on top of the Fuselage allows for a clean, undisturbed approaching flow. Surface piercing of the Stabilizer is not a problem, as the Front Wing sits deeper in the water and is still fully submerged, giving you that extra time to react and adjust your ride height.
Sonar Foil Board Adaptor
New Board Adaptor for the AF72 and AF85 masts. FE-Analysis allows us to optimise the structure, increase strength in the areas of highest stress concentration and reduce unecessary weight in lower stress areas. Incorporates a strong geometry locking connection for better energy transfer and a more direct feel. (Not compatible with AK Mast Series)
Industry-standard 165x90mm bolt pattern
The Sonar Foil System can be mounted to any foil board with a 165x90mm bolt pattern. Foil Board and foil to board attachment screws sold separately
CNC-machined anodised aeronautical grade 6061-T6 aluminum Fuselage. Hydrodynamically optimised shape for minimum resistance.
Supplied with Sonar Travel Bag
Stow your Sonar Quiver safely in between sessions with our Heavy Duty 600D Padded Travel Bag. Roomy enough inside to fit the complete Sonar Foil set, including all three wings and three masts inside their individual covers. The bag also has enough depth to leave the Board Adaptor connected to the mast, making your foil packdown faster. Designed with straps, clips and interior pockets to secure contents. Your worry-free travel companion. Included with every complete Foil Edition.
Modular foil system
Customise your ride with our fully interchangeable foil parts to explore multiple disciplines and riding styles all with one setup.
Foil to board mounting hardware supplied with North Foil Boards
Front Wing sold separately
Includes: 72cm or 85cm Mast, S01 Stabilizer with Cover, 600mm Fuselage, Board Adaptor, Screw Packs A,B,C, Tool Set, Travel Bag.