G-125 - Fortress Marine Anchors Fortress G-125 65lb Guardian | Aztek Computers
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SKU: WJKO7IHJVG |  Mfg. Part: G-125  | UPC: 647124341253  | 
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G-125 - Fortress Marine Anchors Fortress G-125 65lb Guardian Anchor f/63'-72' Boats

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$1,125.43 

Product Overview

G-125 65lb Guardian Anchor for 63'-72' Boats

Boat size recommendations are for boats of average windage and proportions in 30 knots of wind, average bottom conditions, and moderate protection from open seas. Remember that the loads in 42 knots of wind are twice as much as in 30 knots.

Use 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.

Specifications:
  • Boat Length: 63-72ft/19-22m
  • Weight: 65lbs/29kg
  • Holding Power: 32° (Hard Sand): 18,000lbs/8,165kg
  • Holding Power: 32° (Soft Mud): 3,600lbs/1,633kg
  • Shank: 53"/135cm
  • Fluke: 31"/79cm
  • Stock: 43"/109cm
  • Proof Coil Chain: 1/2"/13mm
  • Nylon Rope: 1"/25mm
  • Shackle Size: 5/8"/16mm


*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.

















Expert Overview

The Fortress G-125 Guardian Anchor is a 65lb anchoring solution designed for marine vessels ranging from 63 to 72 feet in length. This anchor is suitable for boats of average windage and proportions operating in typical conditions, including winds up to 30 knots, average bottom conditions, and moderate protection from open seas. It provides a holding power of 18,000 lbs in hard sand and 3,600 lbs in soft mud. Key dimensions include a 53-inch shank, 31-inch fluke, and 43-inch stock. For optimal performance, it requires a 1/2-inch proof coil chain, 1-inch nylon rope, and a 5/8-inch shackle. This anchor addresses the need for reliable vessel securement in standard operational environments, with recommendations to scale up for storm conditions or increased wind loads.

Product Details

  • Manufacturer:
  • Model Number:
  • ASIN:
  • UPC:
  • Condition:
  • Weight:
  • Dimensions:
  • Updated:
  • Added:
  • Country of Origin:
  • Fortress Marine Anchors
  • G-125
  • B0000AXNZV
  • 647124341253
  • New
  • 60.7 lbs
  • 55 X 5 X 11
  • Aug 02, 2026
  • Nov 04, 2025
  • United States
Product Identifiers: Brand: Fortress Marine Anchors • Part #: G-125 • UPC: 647124341253 • ASIN: B0000AXNZV

Frequently Asked Questions

What boat sizes is the G-125 anchor designed for?

The G-125 anchor is recommended for boats between 63 and 72 feet (19-22 meters) in length. This recommendation applies to boats with average windage and proportions in 30 knots of wind, average bottom conditions, and moderate protection from open seas.

What are the recommended chain, rope, and shackle sizes for this anchor?

For proper deployment, this anchor requires a 1/2-inch (13mm) proof coil chain, 1-inch (25mm) nylon rope, and a 5/8-inch (16mm) shackle. It is also recommended to use 6-12 feet (2-4 meters) of chain and a minimum of 5:1 scope.

What is the holding power of the G-125 anchor in different bottom conditions?

The G-125 anchor has a holding power of 18,000 lbs (8,165 kg) in 32-degree hard sand and 3,600 lbs (1,633 kg) in 32-degree soft mud. These figures represent loads achieved under controlled horizontal pull conditions without dragging.

Are there any specific considerations for using this anchor in storm conditions?

Yes, for storm conditions, it is recommended to use an anchor one or two sizes larger than the standard recommendation. Loads in 42 knots of wind are twice as much as in 30 knots, necessitating a larger anchor for increased security.

G-125 - Fortress Marine Anchors Fortress G-125 65lb Guardian Anchor f/63'-72' Boats

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$1,125.43