The format of the  Winfoil data must be as follows;

Two data files are required :


1. Airfoil Data File

This file contains the airfoil name, clmax, cdmin and cmmax. Example shown below. Note the comma after each value and as the last character on each line.


CLARK Y,0.00,0.0000,0.0000,

CLARK YH,0.00,0.0000,0.0000,


Winfoil will automatically verify the formatting of the file before attempting to load the data. An error message will be displayed if the formatting is invalid. This data format is identical to the export format of the earlier versions of Winfoil so that you can export the data you have entered in previous versions and import it into the new version.


2. Airfoil Coordinate Data File

This file contains the airfoil name, upper x coordinate, upper y coordinate, lower x coordinate and lower y coordinate. All coordinates are expressed as percentages and all values are separated by commas with a comma signifying the end of each line.


Example shown below.

CLARK Y,000.0000,003.5000,000.0000,003.5000,

CLARK Y,000.5000,004.5500,000.5000,002.8000,

CLARK Y,001.0000,005.2000,001.0000,002.3000,


Winfoil will check if the airfoil that is imported already exists. If the airfoil already exists then

you will be prompted to whether you want the data in Winfoil overwritten by the imported data. You can select to overwrite , skip or cancel the import operation.