Fortress Anchors

Guardian Anchor Stowaway Bag

Having storm anchors aboard can make the difference between safety and disaster. The Fortress Guardian Stowaway Anchor Bag holds everything you need to deploy your or Guardian anchor quickly. No more searching for wrenches, shackles or chain. With the Stowaway system, it's "in the bag!"

The Stowaway bags are built to last in the rugged marine environment. The bag closure as well as the straps (which serve as convenient carrying handles) are high strength, extra wide Velcro. Inside each bag are pouches to hold the correct size wrenches (included) and even a spare fluke clip, bolt and nut (also included). Easy to understand diagrams are sewn into the bag to take you through anchor assembly and bag-packing procedures.

Features:

Custom design holds Guardian anchors

Made from top quality, rugged Cordura fabric technology

Easy to understand sewn diagrams for packing procedures

Inside pouches hold correct size wrenches (included)

Secures anchor, chain, shackle, and wrenches

A spare fluke clip, bolt, and nut are included

Stowaway Bags are Available for the Following Guardian Anchors:

Guardian Model G-7

Bag Length: 23"

Wrenches: 3/8"

# of Spare Clips: 1

Guardian Model G-11

Bag Length: 26"

Wrenches: 3/8"

# of Spare Clips: 1

Guardian Model G-16

Bag Length: 30"

Wrenches: 7/16"

# of Spare Clips: 1

**Anchor sold separately

Fortress Marine Anchor Stowaway Bag

Having storm anchors aboard can make the difference between safety and disaster. The Fortress Stowaway Anchor Bag holds everything you need to deploy your Fortress or Guardian anchor quickly. No more searching for wrenches, shackles or chain. With the Stowaway system, it's "in the bag!"

The Stowaway bags are built to last in the rugged marine environment. The bag closure as well as the straps (which serve as convenient carrying handles) are high strength, extra wide Velcro. Inside each bag are pouches to hold the correct size wrenches (included) and even a spare fluke clip, bolt and nut (also included). Easy to understand diagrams are sewn into the bag to take you through anchor assembly and bag-packing procedures.

Features:

Custom design holds Fortress anchors

Made from top quality, rugged Cordura fabric technology

Easy to understand sewn diagrams for packing procedures

Inside pouches hold correct size wrenches (included)

Secures anchor, chain, shackle, and wrenches

A spare fluke clip, bolt, and nut are included

Stowaway Bags are Available for the Following Fortress Anchors:

Fortress Model FX-7

Length: 25"

Wrenches: 3/8"

# of Spare Clips: 1

Fortress Model FX-11

Length: 28"

Wrenches: 7/16"

# of Spare Clips: 1

Fortress Model FX-16

Length: 32"

Wrenches: 7/16"

# of Spare Clips: 1

**Anchor sold separately

Fortress Marine Guardian Anchor

Built for strength without the bulk, the Fortress Guardian Anchor is crafted from a corrosion-resistant aluminum-magnesium alloy that’s tough yet lightweight. Its compact profile makes it easier to handle than traditional steel anchors, while still offering serious holding power. Mud palms guide the flukes into the seabed fast, giving you a solid set across a variety of bottoms. Designed with the same precision as top-tier Fortress models, the Guardian skips the extra weight, but not the quality. Whether you're anchoring for a quick break or overnight stay, this anchor stands up to the elements without rusting or dragging you down. Ideal for anyone who wants reliable performance minus the steel upkeep.

Features:

Fortress Guardian Anchor’s aluminum alloy composition is as strong as steel, but only half the weight.

Easy to manage weight

Rustproof

An affordable alternative to heavy steel anchors

Can be disassembled - Easy to store

1-Year Manufacturer’s Parts Replacement Warranty

Made in the USA

Guardian Anchor Selection Guide:

• Boat size recommendations are for boats of average windage and proportions to 30 knots of wind, average bottom conditions, and moderate protection from open seas. Note that the loads in 42 knots of wind are twice as much as in 30 knots. Use a three-strand nylon line, 6-12 ft of chain, and a minimum if 5:1 scope. A minimum of 6 feet of chain should be used for every 25 feet of water your boat is usually anchored in.

Model

Weight

Boat Length

Shank Length

Fluke Length

Working Load

Holding Power in Hard Sand

Holding Power in Soft Mud

G-5

2-1/2 lbs.

12'-16'

19"

11"

350 lbs.

1050 lbs

210 lbs

G-7

4 lbs.

17'-22'

22"

13"

575 lbs.

1725 lbs

345 lbs

G-11

6 lbs.

23'-27'

25"

15"

750 lbs.

2250 lbs

450 lbs

G-16

7 lbs.

28'-33'

29"

17"

1075 lbs.

3225 lbs

645 lbs

G-23

13 lbs.

34'-41'

33"

19"

1625 lbs.

4875 lbs

975 lbs

G-37

18 lbs.

42'-47'

38"

22"

2500 lbs.

7500 lbs

1500 lbs

G-55

29 lbs.

48'-53'

43"

25"

3500 lbs

10500 lbs

2100 lbs

G-85

42 lbs.

54'-62'

48"

28"

4625 lbs.

13875 lbs

2775 lbs

G-125

65 lbs.

63'-72'

53"

31"

6000 lbs.

18000 lbs

3600 lbs

Information provided by Fortress Marine.

How to Set a Fortress Guardian Anchor:

Fortress Anchors offer a Lifetime Parts Replacement Warranty for the original purchaser against damage that may occur to any part(s) of the anchor. The warranty does not apply when:

Repairs have been made or attempted by others

Unauthorized modifications or alterations have been made

The anchor has been used to moor a vessel larger than the size recommended for a particular anchor by Fortress Marine Anchors

The anchor has been abused, misused or improperly maintained

The anchor has been used for military applications

https://fortressanchors.com/warranty/warranty-replacement-parts-form/

Frequently Asked Questions

• What is the Fortress Marine Guardian Anchor made from? The Fortress Marine Guardian Anchor is made from a corrosion-resistant aluminum-magnesium alloy designed to provide strength while weighing less than traditional steel anchors. According to Fortress Marine, the aluminum alloy is as strong as steel while weighing approximately half as much, making the anchor easier to handle and store. How do I choose the right Fortress Guardian Anchor size for my…

Fortress Marine Aluminum Fluke Anchor

Fortress Marine Anchors deliver professional-grade holding power through high-tensile aluminum alloy construction that matches steel strength at significantly reduced weight. Models span from the 4-pound FX7 to the 69-pound FX125, accommodating vessels up to 150 feet. Adjustable fluke angles optimize performance across varying bottom conditions - 32 degrees for clay, mud, or sand, and 45 degrees for soft mud. Sharp edges enable quick penetration, with proven pull loads exceeding 200 times the anchor's weight. The corrosion-resistant, anodized finish ensures durability, while the disassemblable design simplifies storage. U.S. Navy testing confirms Fortress anchors outperform heavier steel alternatives without compromising structural integrity. Each unit includes a lifetime parts replacement warranty for reliable vessel security.

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.

Model

Weight

Recommended Boat Size

Working Load

32° Hard Sand Holding

45° Soft Mud Holding

32° Soft Mud Holding

FX7

4 lbs

16' - 27'

700 lbs

2800 lbs

840 lbs

420 lbs

FX11

7 lbs

28' - 32'

900 lbs

3600 lbs

1080 lbs

540 lbs

FX16

10 lbs

33' - 38'

1250 lbs

5000 lbs

1500 lbs

750 lbs

FX23

15 lbs

39' - 45'

2000 lbs

8000 lbs

2400 lbs

1200 lbs

FX37

21 lbs

46' - 51'

3000 lbs

12000 lbs

3600 lbs

1800 lbs

FX55

32 lbs

52' - 58'

4000 lbs

16000 lbs

4800 lbs

2400 lbs

FX85

47 lbs

59' - 68'

5250 lbs

21000 lbs

6300 lbs

3150 lbs

FX125

69 lbs

69' - 150'

6750 lbs

27000 lbs

8100 lbs

4050 lbs

How to Set a Fortress Fluke Anchor:

Frequently Asked Questions

• What is the Fortress Marine Aluminum Fluke Anchor designed for? The Fortress Marine Aluminum Fluke Anchor is designed to provide high holding power while using lightweight, high-tensile aluminum alloy construction. Models range from the 4 lb FX7 to the 69 lb FX125, with recommended boat sizes ranging from 16 to 150 feet depending on the selected model.
• How do I choose the correct Fortress Fluke Anchor model for my boat? Select the anchor model based on the recommended boat size and working load listed for each model. The FX7 is recommended for boats from 16-27 feet, while the FX125 is listed for boats from 69-150 feet. The recommendations assume average windage, 30-knot winds, average bottom conditions, and moderate protection from open seas.
• Can the Fortress Marine Aluminum Fluke Anchor be adjusted for different bottom conditions? Yes. The Fortress Fluke Anchor uses adjustable fluke angles to optimize performance across different bottom conditions. The product information specifies a 32° setting for clay, mud, or sand and a 45° setting for soft mud.
• How should the Fortress Marine Aluminum Fluke Anchor be stored? The Fortress Fluke Anchor can be disassembled for easier storage. Its lightweight aluminum…