CHOOSING THE CORRECT ANCHOR RODE
Advice on how to select the correct anchor line and chain rode for your boat.
Whitsunday Discount Marine recommends 3 strand nylon rope for anchor line due to its stretch and strength. Silver or polypropylene rope is not recommended.
Nylon 3 Strand:
3mm of rope diameter per 2.75 metres (9 feet) of boat length
Polyester 3 strand:
4mm of rope diameter per 2.75 metres (9 feet) of boat length
Silver 3 strand:
5mm of rope diameter per 2.75 metres (9 feet) of boat length
Chain length = boat length (preferable)
Chain diameter:
8mm anchor line: 6mm
10mm anchor line: 8mm
12mm anchor line: 8mm
16mm anchor line: 10mm
COMPARISON OF BREAKING AND WORKING LOADS OF ROPES
| Braided & 3 Strand | Dyneema Core | Nylon | Polyester | Polypropylene (Silver) | ||||
| Rope Size |
Breaking Load
Kg
|
Working Load
Kg
|
Breaking Load
Kg
|
Working Load
Kg
|
Breaking Load
Kg
|
Working Load
Kg
|
Breaking Load
Kg
|
Working Load
Kg
|
| 8mm | 2,200 | 610 | 1,215 | 338 | 918 | 255 | 630 | 175 |
| 10mm | 3,400 | 950 | 1,872 | 520 | 1,431 | 398 | 981 | 273 |
| 12mm | 7,200 | 2,000 | 2,700 | 750 | 2,043 | 568 | 1,386 | 385 |
| 14mm | 3,690 | 1,025 | 2,862 | 795 | 1,881 | 523 | ||
| 16mm | 4,770 | 1,325 | 3,690 | 1,025 | 2,520 | 700 | ||
| 18mm | 6,030 | 1,675 | 4,635 | 1,288 | 3,150 | 875 | ||
| 20mm | 7,470 | 2,075 | 5,760 | 1,600 | 3,870 | 1,075 | ||
