The Fortress FX-85 47 lb Anchor is revered by boaters and marine experts worldwide as the World’s Best Anchor for serious mariners with 59–68 ft vessels. It combines steel-like strength with half the weight thanks to a precision-machined aluminum alloy, delivering rugged performance with easier on-deck handling for safer anchoring on every voyage.
-
Weight and material: Precision-machined from an aluminum alloy that is as strong as steel, but only half the weight.
-
Rustproof and corrosion resistant: Tough anodized finish stands up to saltwater and rugged use, maintaining a handsome, durable appearance mile after mile.
-
Sharper and holding power: Sharper than heavy, dull-edged steel anchors; sets faster and penetrates deeper into common sea bottoms for incredible holding power.
-
Disassemblable for storage: Can be taken apart for compact storage and is excellent as a spare or storm anchor when needed.
-
Lifetime Parts Replacement Warranty: Free replacement of any damaged anchor part, forever.
-
Adjustable fluke angle: 32 to 45 degrees, an exclusive and patented feature that dramatically increases holding power in soft mud bottoms.
-
Tough anodized finish: Handsome and durable appearance; corrosion resistant.
-
Engineered for large boats: Specifically sized for vessels in the 59–68 ft range, delivering the ideal balance of weight, shape, and hold for your yacht.
-
Designed for FX-85 size: 47 lb anchor optimized for 59–68 ft boats, offering proven reliability and performance at this scale.
When you choose the FX-85, you’re selecting a proven anchoring solution that’s been tested coast to coast and around the world, delivering world-class holding power in both hard sand and soft mud. The design emphasizes practical, real-world performance: easy handling due to the lighter weight, rapid setting, and deep penetration into bottoms for confident holds. The disassemblable design simplifies storage and makes it a strong spare or storm anchor. The anodized finish protects against corrosion in harsh marine environments, while the lifetime parts warranty provides long-term assurance of service. This anchor is designed specifically for large boats in the 59–68 ft range, ensuring you get the right balance of weight, shape, and hold for your yacht.
| Feature | Benefit |
Precision-machined from an aluminum alloy that is as strong as steel, but only half the weight. | - Easy to manage weight
- Rustproof
- Sharper than heavy, dull-edged steel anchors
- Will set faster and penetrate deeper into common sea bottoms for incredible holding power
|
| Can be disassembled | - Excellent as a spare or storm anchor
- Easy to store
|
| Lifetime Parts Replacement Warranty | - Free replacement of any damaged anchor part...Forever!*
|
| Adjustable 32 to 45 fluke angle | - Exclusive and patented feature which dramatically increases holding power in problem soft mud bottoms
|
| Tough anodized finish | - Handsome and durable appearance
- Corrision resistant
|
| FORTRESS SELECTION GUIDE
|
| Model | FX-7
| FX-11
| FX-16
| FX-23
| FX-37
| FX-55
| FX-85
| FX-125
|
| Boat Length |
| ft
| 16'-27'
| 28'-32'
| 33'-38'
| 39'-45'
| 46'-51'
| 52'-58'
| 59'-68'
| 69'-150'
|
| m
| 5-8
| 8-10
| 10-12
| 12-14
| 14-15
| 16-18
| 18-21
| 21-46
|
| Weight | lb
| 4
| 7
| 10
| 15
| 21
| 32
| 47
| 69
|
| kg
| 1.8
| 3.2
| 4.5
| 6.8
| 9.5
| 14.4
| 21.2
| 31.1
|
| Replaces Steel Anchors | lb
| 6-9
| 10-13
| 14-18
| 19-28
| 33-50
| 50-65
| 70-90
| 100-170
|
| kg
| 3-4
| 5-6
| 6-8
| 9-13
| 15-23
| 23-29
| 32-41
| 45-77
|
| HOLDING POWER |
| Model
| FX-7
| FX-11
| FX-16
| FX-23
| FX-37
| FX-55
| FX-85
| FX-125
|
| Working Load
| | | | | | | | | |
| lb
| 700
| 900
| 1.250
| 2,000
| 3,000
| 4,000
| 5,250
| 6,750
|
| kg
| 318
| 408
| 567
| 907
| 1,351
| 1,814
| 2,381
| 3,062
|
| 32 Degree Hard Sand Holding Power
| lb
| 2,800
| 3,600
| 5,000
| 8,000
| 12,000
| 16,000
| 21,000
| 27,000
|
| kg
| 1,270
| 1,633
| 2,268
| 3,629
| 5,443
| 7,258
| 9,536
| 12,247
|
| 45 Degree Soft Mud Holding Power
| lb
| 840
| 1,080
| 1,500
| 2,400
| 3,600
| 4,800
| 6,300
| 8,100
|
| kg
| 381
| 490
| 680
| 1,089
| 1,633
| 2,177
| 2,858
| 3,674
|
| 32 Degree Soft Mud Holding Power
| lb
| 420
| 540
| 750
| 1,200
| 1,800
| 2,400
| 3,150
| 4,050
|
| kg
| 191
| 245
| 340
| 544
| 816
| 1,089
| 1,429
| 1,837
|
| DIMENSIONS |
| Model | FX-7
| FX-11
| FX-16
| FX-23
| FX-37
| FX-55
| FX-85
| FX-125
|
| "A" Shank Length |
| in
| 24"
| 27"
| 31"
| 36"
| 40"
| 46"
| 51"
| 56"
|
| mm | 610
| 685
| 787
| 914
| 1,016
| 1,168
| 1,295
| 1,422
|
| "B" Fluke Length | in | 14"
| 16"
| 18"
| 21"
| 24"
| 27"
| 30"
| 33"
|
| mm | 356
| 406
| 457
| 533
| 610
| 686
| 762
| 838
|
| "C" Stock Length | in | 19"
| 22"
| 25"
| 29"
| 32"
| 37"
| 41"
| 45"
|
| mm | 483
| 559
| 635
| 737
| 813
| 940
| 1,041
| 1,143
|
| SUPPORT HARDWARE
|
| Model | FX-7
| FX-11
| FX-16
| FX-23
| FX-37
| FX-55
| FX-85
| FX-125
|
| Proof Coil Chain
|
| in
| 3/16"
| 1/4"
| 5/16"
| 3/8"
| 3/8"
| 1/2"
| 1/2"
| 1/2"
|
| mm
| 5
| 6
| 8
| 9
| 9
| 13
| 13
| 13
|
| Nylon Rope** | in
| 3/8"
| 3/8"
| 1/2"
| 5/8"
| 3/4"
| 7/8"
| 1"
| 1 1/4"
|
| mm
| 9
| 9
| 13
| 16
| 19
| 22
| 25
| 32
|
| Shackle Size
| in
| 1/4"
| 1/4"
| 5/16"
| 3/8"
| 7/16"
| 1/2"
| 5/8"
| 5/8"
|
| mm
| 6
| 6
| 8
| 10
| 12
| 12
| 16
| 16
|
| NOTE: Hard sand holding power figures above represent loads actually achieved on production FORTRESS and Guardian anchors under controlled horizontal pull conditions without dragging or resulting in disabling structural deformation. ** Rope recommendations are based on 25% of breaking strength. Rope must be in good condition. |
