Foil Adapter

A Foil Adapter (also Mast Adapter or Foil Mount Adapter) is a mechanical connector that makes it possible to couple a foil mast with different board mounting systems or to combine components from different brands. It bridges incompatibilities and ensures that the enormous lever forces of the flow are safely transferred from the mast to the board.

Design and operation

• Material & Shape: The adapters are usually made of high-strength, seawater-resistant CNC-machined aluminum. They have a mount on one side that fits exactly onto the profile of the respective mast, and on the other side the interface to the board or the fuselage.
• The mechanical bridge: Not every board has the same box installed in the bottom. An adapter is bolted firmly to the top end of the mast and reshapes it so that it fits into the existing box of the board.

Features and properties

• Cross-system flexibility: It makes it possible to use an older board or a board from a different brand with a modern foil. For example, a mast with a traditional Tuttle box connection can be mounted on a modern board with a Double Track rail system (US box).
• Mast-to-fuselage coupling: In addition to the board adapters, there are also adapter pieces for the lower end of the mast. In rare cases, these allow the mast of one brand to be securely bolted to the fuselage of another brand.
• Preservation of material value: Instead of having to replace the entire expensive foil when changing boards, a small adapter for a fraction of the price is often enough to continue using the existing setup.