Guardian Anchor Guide
| GUARDIAN SELECTION GUIDE |
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| Boat Length (ft) | 12-16′ | 17-22′ | 23-27′ | 28-33′ | 34-41′ | 42-47′ | 48-53′ | 54-62′ | 63-72′ |
| MODEL | G-5 | G-7 | G-11 | G-16 | G-23 | G-37 | G-55 | G-85 | G-125 |
| Weight (lb) | 2.5 | 4 | 6 | 7 | 13 | 18 | 29 | 42 | 65 |
| Replace Steel Anchors (lb) | 4-6 | 6-9 | 10-13 | 14-18 | 19-28 | 33-50 | 50-65 | 70-90 | 100-170 |
| Proof Coil Chain | 3/16″ | 3/16″ | 3/16″ | 1/4″ | 5/16″ | 3/8″ | 3/8″ | 1/2″ | 1/2″ |
| Nylon Rope** | 3/8″ | 3/8″ | 3/8″ | 3/8″ | 1/2″ | 5/8″ | 3/4″ | 7/8″ | 1″ |
| Shackle Size | 3/16″ | 3/16″ | 1/4″ | 1/4″ | 5/16″ | 3/8″ | 7/16″ | 1/2″ | 5/8″ |
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.
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.
This was taken from Fotress Marine Anchors “Safe Anchoring Guide” on 04/09/08