First for those who are not afraid by mathematics, have a look at the very interesting web page:
- Tuning an anchor rode
: Tuning an Anchor Rode
Danjcon: How much chain can I use?
The main purpose of the chain is to attach the anchor
to the boat, or if you prefer the boat to the anchor
Its main advantage is to be the best mean to avoid chaffing of the rode
to the sea bottom (sometime very aggressive
- For this reason a chain length of one or max two times the length of your boat
is far enough, and then an elastic
rode: Nylon rope...
Don’t listen to people who says
Add a kellet to your arsenal
as the efficiency of a kellet (angel – Chum – Sentinel..) is nearly nothing (see the previous web page
Don’t listen either to people who says
Usually more chain is better for holding power.
This is wrong; the realty is more RODE
is better for holding as it will decrease the pulling angle.
The best rode
is a rode with enough ELASTICITY
(chain doesn’t have elasticity – Nylon YES
), so take enough chain to avoid chaffing of the rode on the sea bottom, and then Nylon rope
If you want to save more weight, look at “NEW GEN” anchors, as they are by far more efficient, you can decrease the anchor weight by one to two sizes.