Each line of data in a wind coefficient file has the following format:
Relative floating body/wind heading, Cwy, Cwz, Cwθ
This line is repeated until wind coefficient values are specified for all headings. Relative floating body/wind heading in this context is defined as the angle of incidence of the wind relative to the floating body axes; refer to Definition of Wind and Current Directions for a more detailed definition. Cwy, Cwz, and Cwθ are respectively the wind coefficients in surge, sway and yaw at a particular heading.
•*WIND COEFF is used to specify wind coefficients used to determine the wind loading on a floating body or moored vessel.
If you would like to see an example of how this keyword is used in practice, refer to D01 - Moored Vessel.