HI.

I am trying to add flaps to s1223 airfoil I have imported.

I have sized the airfoil to 6.8 inches and want to make flaps at a distance of 1.3 inches from end of airfoil,at an angle of  6 degree.

One way that I have done is I have taken a snapshot of the part needed to be cut,then trim all the rest of airfoil i.e the last 1.3 inches of it.

Then I have imported  the picture,tilted it to 6 degrees and then traced the picture using "spline" tool.

BUT this method is not a very appropriated method

Hence I request anyone to please tell a more appropriated method.

Thank You