If the complete thickness distribution including leading or trailing edge was already designed in the Blade profile dialog, then the Edge position (transition from blade edge to blade suction/pressure side) has to be defined only.

In panel Geometry the transition from the blade edge to the suction/pressure side can be defined.
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Position in % of the straight blade length.
The leading edge should be within the range of 0% to 15%, the trailing edge between 85% and 100%.
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Page url: http://www.cfturbo.com/fileadmin/content/manual/en/index.html?edge_position.html