How much chain to let out as a function of wind strength
Chain and anchor parameters:
Size of chain
Weight
Length of chain
Allowable angle of chain at anchor
9.5 mm
6.5 mm
8.0 mm
9.5 mm
10 mm
11 mm
12.5 mm
13 mm
14 mm
16 mm
19 mm
kg/m
metres
° (Suggest Rocna 5°, CQR 0°)
Boat parameters: forces in daN, wind in Beaufort scale
Type of boat
LOA in meters
Force 4
Force 6
Force 8
Force 10
Cruising monohull
Low windage monohull
Catamaran
Motor Cruiser