F4 has been developing racing fins for windsurf and kite board course and slalom racing since 2008. Since the recent America’s Cup the foil bug has bitten, and F4 has focused entirely on developing hydrofoils for kite and windsurf boards. F4 is located near some of the best testing grounds and riders in the world and has access to advanced composites materials and facilities. F4 is building foils using the same materials, tooling, and process equipment used to build support aerospace programs and AC72 boats.

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