Fortress Marine Aluminum Fluke AnchorFortress Marine Anchors represent the pinnacle of anchor technology, combining lightweight construction with exceptional holding power. These precision-engineered anchors are manufactured from high-tensile aluminum alloy, delivering strength comparable to steel at a fraction of the weight. Available in models ranging from the 4-pound FX7 for smaller vessels to the 69-pound FX125 for boats up to 150 feet, each anchor features adjustable fluke angles to accommodate different bottom conditions. Set at 32 degrees, they excel in clay, mud, or sand, while the 45-degree setting is optimal for soft mud. The anchors' sharp edges ensure quick penetration and superior holding power, with test results showing they can withstand pull loads over 200 times their weight. Their corrosion-resistant, rust-proof finish and ability to disassemble for storage make them ideal for both primary and storm anchor applications. Each Fortress anchor comes backed by a lifetime parts replacement warranty, ensuring long-term reliability for your vessel. Perhaps the best recommendation for Fortress marine anchors is from the U.S. Navy which tests leading anchors. Their results proved that Fortress anchors out-performed much heavier steel anchors, that Fortress anchors withstood pull loads that averaged over 200 times their own weight, without causing serious damage to the anchors' structural integrity.Features: Fortress Marine Anchors are manufactured with lightweight high tensile aluminum alloy that is as strong as steel.; Corrosion-resistant durable anodized finish.; Rust proof finish; Sharper than heavy-duty dull-edged steel anchors; Disassembles for easy storage; Great spare or storm anchor; Features Lifetime Hassle-Free Parts Replacement Warranty; NOTE: Boat size recommendations factor in average windage and proportions in 30 knots of wind, average bottom conditions, and moderate protection from open seas. Also, note that loads in 42 knots of wind 'weigh' twice as much as in 30 knots.We recommend using a three-strand nylon rope, 6-12 ft (2-4 m) of chain, and a minimum of 5:1 scope. Also, a minimum of 6 ft (2 m) of chain should be used for every 25 ft (8 m) of water depth. For storm conditions use an anchor one or two sizes larger.ModelWeightRecommended Boat SizeWorking Load32 Hard Sand Holding45 Soft Mud Holding32 Soft Mud HoldingFX74 lbs16' - 27'700 lbs2800 lbs840 lbs420 lbsFX117 lbs28' - 32'900 lbs3600 lbs1080 lbs540 lbsFX1610 lbs33' - 38'1250 lbs5000 lbs1500 lbs750 lbsFX2315 lbs39' - 45'2000 lbs8000 lbs2400 lbs1200 lbsFX3721 lbs46' - 51'3000 lbs12000 lbs3600 lbs1800 lbsFX5532 lbs52' - 58'4000 lbs16000 lbs4800 lbs2400 lbsFX8547 lbs59' - 68'5250 lbs21000 lbs6300 lbs3150 lbsFX12569 lbs69' - 150'6750 lbs27000 lbs8100 lbs4050 lbsHow to Set a Fortress Fluke Anchor: