Energy transfer

The Sonar AF Foil System is connected to the board by a lightweight CNC-machined aluminium AF Board Adaptor with a tapered geometry locking connection that engages with the mast, fusing Board Adaptor and mast together to build one union for optimum load transfer and a stronger, more direct feeling and steering impulse when foiling. FE-Analysis allows us to 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. The AF Board Adaptor is compatible only with the higher load Sonar AF Foil Masts. It is NOT compatible with the Sonar AK Kite Masts.

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Compatible with AF Foil Mast Series


Not compatible with AK Mast Series.