- Sonar AF72 or AF85 Mast
- GeoLock tapered geometry locking system
- Easy recovery from surface breaching
- Sonar Foil Board Adaptor
- Industry-standard 165x90mm bolt pattern
- Fuselage 600mm
- Modular foil system
- Front Wing sold separately
- Foil to board mounting hardware supplied with North Foil Boards
Sonar AF72 or AF85 Mast
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 tapered geometry locking system
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.
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.
Sonar AF 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.
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.
Modular foil system
customise your ride with our fully interchangeable foil parts to explore multiple disciplines and riding styles all with one setup.