F-One (T1) Eagle HM Carbon 690 Foil Plane-USED

The F-One Eagle HM Carbon 690 is the smallest front wing in F-One's Eagle high-aspect foil series, built for speed-oriented downwind foiling and high-wind wing foiling. Part of the Eagle lineup that spans from 690 cm² up to 1290 cm², this wing sits at the performance end of the range, targeting experienced riders who want minimal drag and maximum efficiency. F-One constructs the Eagle HM Carbon wings using a pre-preg High Modulus Carbon layup—where carbon fiber is pre-impregnated with epoxy resin and cured at high temperature—resulting in a monobloc structure that is notably stiff and light. This particular listing is for a pre-owned unit.

The Eagle series is designed around ocean surfing and downwind foiling, combining efficient glide with maneuverability that high-aspect foils don't always deliver. The 690's compact surface area keeps drag low, allowing it to hold speed through transitions and maintain flow between swells.

• Wing Area: 690 cm²
• Span: 82 cm
• Aspect Ratio: 9.7
• Weight: 0.98 kg
• Construction: Pre-preg High Modulus Carbon, monobloc structure
• Connection System: TITAN 2 (two M8 screws)
• Recommended Stabilizers: Carving 138 XS or DW 136 XS
• Available Sizes in Eagle Range: 690, 790, 890, 990, 1090, 1190, 1290 cm²

The Eagle HM Carbon 690 is aimed at advanced riders—foilers who are already comfortable on high-aspect setups and want to push into higher speeds and stronger conditions. At just 690 cm², this wing requires solid technique to pump onto foil and stay riding in lighter winds, so it is not a beginner or even intermediate-friendly option. F-One positions the 690 and 790 sizes for smaller-framed riders or experienced foilers looking to extend their top-end speed.

Condition-wise, the 690 is tuned for powered wing foiling sessions and committed downwind runs where wind and swell energy are ample. Riders chasing personal speed records or looking for a dedicated strong-wind front wing will find this size appropriate. The High Modulus Carbon construction—rated at 1.5 times stiffer than standard carbon layups—helps the wing maintain its profile under load, which matters most at the speeds this size is designed to reach.

Within F-One's foil catalog, the Eagle series occupies the high-aspect, speed-and-glide segment. It sits alongside the Phantom (aspect ratio around 6.5, designed for all-around and freestyle use), the SK8 (wave-focused), and the Eagle X (a higher-performance downwind variant). The Eagle HM Carbon range itself offers seven sizes, making the 690 the entry point for riders stepping down in area for more speed, while the 1090 and 1290 serve as the accessible end for lighter winds and larger riders.

For buyers comparing across brands, the 690 competes in the sub-700 cm² high-aspect front wing category used primarily in downwind and high-wind disciplines. At under one kilogram, the wing's weight is competitive for its class. Because this is a used unit, the price point offers a way into F-One's premium HM Carbon construction at a lower cost than retail for a new wing.