For over three decades, the much lighter Fortress Anchor has out-performed substantially heavier steel anchors in holding power tests conducted all around the world.  In the US Navy tests, not only did the Fortress out-perform heavier steel anchors, they were also able to withstand pull loads that averaged over 200x their own weight. 

Fortress Anchors are constructed using a high-tensile, corrosion-resistant, aluminum magnesium alloy. This results in a lighter, easy to handle anchor with superior holding power.

The anchors have been designed to be easily disassembled for compact storage, or as a spare and/or a storm anchor.  All Fortress Anchors are precision-machined for sharpness and quick penetration into common sea bottoms, which ensures faster setting-performance.

Fortress Marine Anchors offers a 100% Hassle-Free Lifetime Parts Replacement Warranty.

*Made in the U.S.A.

Features:

• Award Winning Design
• Highest rating in tests worldwide
• Hardened high-tech aluminum magnesium alloy
• Adjustable fluke angles: 32°  for common bottoms, 45° for soft mud
• Easily disassembled for easy storage
• Easy to manage weight
• Tough anodized finish

Technical Specifications:

• Size of Boat - 52' to 58' (16 to 18 M)
• Style - Fluke
• Material - Aluminum magnesium alloy
• Working Load - 4,000lb (1,814kg)
• Shank Length - 46" (1,168mm)
• Fluke Length - 27" (686mm)
• Stock Length - 37" (940mm)
• Weight - 32lbs (14.5kg)

*Sold as an Individual 

Boat Length	ft	16'-27'	28'-32'	33'-38'	39'-45'	46'-51'	52'-58'	59'-68'	69'-89'	90'-150'
	m	5-8m	8-10m	10-12m	12-14m	14-15m	16-18m	18-21m	21-27.1m	27.4-46m
Fortress Model		FX-7	FX-11	FX-16	FX-23	FX37	FX-55	FX-85	FX-115	FX-125
Weight	lb (kg)	4 (1.8)	7 (3.2)	10 (4.5)	15 (6.8)	21 (9.5)	32 (14.4)	47 (21.2)	60 (27.2)	69 (31.1)
Replaces Steel Anchors	lb	6-9	10-13	14-18	19-28	33-50	50-65	70-90	90-100	100-170
	kg	3-4	5-6	6-8	9-13	15-23	23-29	32-41	42-44	45-77
				HOLDING POWER
Working Load	lb	700	900	1,250	2,000	3,000	4,000	5,250	6,000	6,750
	kg	318	408	567	907	1,361	1,814	2,381	2,721	3,062
32° Hard Sanding Holding	lb	2,800	3,600	5,000	8,000	12,000	16,000	21,000	24,000	27,000
	kg	1,270	1,633	2,268	3,629	5,443	7,258	9,526	10,886	12,247
45° Soft Mud Holding	lb	840	1,080	1,500	2,400	3,600	4,800	6,300	7,200	8,100
	kg	381	490	680	1,089	1,633	2,177	2,858	3,265	3,674
32° Soft Mud Holding	lb	420	540	750	1,200	1,800	2,400	3,150	3,600	4,050
	kg	191	245	340	544	816	1,089	1,429	1,633	1,837
				DIMENSIONS
"A" Shank Length	in (mm)	24" (610)	27" (686)	31" (787)	36" (914)	40" (1,016)	46" (1,168)	51" (1,295)	51" (1295)	56" (1,422)
"B" Fluke Length	in (mm)	14" (356)	16" (406)	18" (457)	21" (533)	24" (610)	27" (686)	30" (762)	33" (838)	33" (838)
"C" Stock Length	in (mm)	19" (483)	22" (559)	25" (635)	29" (737)	32" (813)	37" (940)	41" (1,041)	45" (1,143)	45" (1,143)
				SUPPORT HARDWARE
Proof Coil Chain	in (mm)	3/16" (5)	1/4" (6)	5/16" (8)	3/8" (9)	3/8" (9)	1/2" (13)	1/2" (13)	1/2" (13)	1/2" (13)
Nylon Rope **	in (mm)	3/8" (9)	3/8" (9)	1/2" (13)	5/8" (16)	3/4" (19)	7/8" (22)	1" (25)	1 1/4" (32)	1 1/4" (32)
Shackle Size	in (mm)	1/4" (6)	1/4" (6)	5/16" (8)	3/8" (10)	7/16" (12)	1/2" (12)	5/8" (16)	5/8" (16)	5/8" (16)