The program draws automatically more or less smooth lines passing through the measured data. You can modify these drafted speed lines (i.e. the pressure ratio -
You will see immediately in four selected views whether the shape of the speed line makes sense from a point of physics or not. Thus you have full control over the shape of the speed lines -
The speed line is modified in Point Working Mode only at one point. In Line Working Mode the whole speed line is affected.
Click the Line Working Mode button first. Move your mouse pointer to the ß-