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|
Fortress Anchor Guide
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 line, 6-12 ft (2-4 m) of chain and a minimum of 5:1
scope. A minimum of 6 ft (2 m) of chain should be used for every 25 ft (8
m) of water that you usually anchor in. For storm conditions use an anchor
one or two sizes larger. |
|
FORTRESS SELECTION GUIDE
|
| 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 |
|
FORTRESS MODEL
|
|
|
FX-7 |
FX-11 |
FX-16 |
FX-23 |
FX-37 |
FX-55 |
FX-85 |
FX-125 |
| 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 |
| Weight |
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
|
|
|
FX-7 |
FX-11 |
FX-16 |
FX-23 |
FX-37 |
FX-55 |
FX-85 |
FX-125 |
| Working
Load |
| Weight |
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 |
| Weight |
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 |
| Weight |
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 |
|
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
|
|
|
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 |
|
|
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
|
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