F4 has become obsessed with hydrofoils and been designing some of the world’s best for Windsurf, Kite, and Surf.  We design and manufacture foils for F4 as well as several other brands and have become known as one of the design leaders in many different segments.  The bug bit after the America’s Cup in San Francisco. Hydrofoils uniquely require the combination of 3D design, fluid dynamics, composites, and processes. Our focus is simple – to design the best hydrofoils possible for each application.


The F4 team consists of Al Mirel, Ben Bamer, Chris Radkowski, and Chip Wasson.