The Fortress anchor is the FX-37 model. Its specifications are: Weight (kg): 9.5, equivalent steel anchor weight (kg): 15-23, A (mm): 1016, B (mm): 610, C (mm): 813, suitable boat length (m): 14-15.
It is manufactured from aluminum, which is as strong as steel but half the weight. It is stated that its lightness allows for easy handling, and it is rustproof and corrosion-resistant. Compared to iron anchors, it is said to have sharper flukes, can be disassembled for storage, and its fluke angles can be adjusted to 32° and 42°. It is also emphasized that it has a hard-anodized surface.
The text states that, despite being half the weight of equivalent anchors, it has greater holding power, and its world-class holding performance is attributed more to its design than its weight. It is noted that it sets quickly and digs deep, providing high holding capacity, is described as a spare storm anchor, and thanks to its patented special structure, it offers high holding power in soft and difficult-to-grip bottom surfaces.