fix(Airfoil): issue with polypolar

src/utils/preproc/createairfoils.m

@@ -47,12 +47,15 @@ function Af = createairfoils(UserAirfoil)
         switch UserAirfoil(i).polarType
             case 'file'
                 Af(i) = Af(i).loadpolar(UserAirfoil(i).polarFile);
+                Af(i).Polar.analyze();
+                Af(i).Polar.extrapMethod = UserAirfoil(i).extrapMethod;
+
             case 'polynomial'
-                Af(i) = Af(i).Polar.polypolar(UserAirfoil(i).clPoly, UserAirfoil(i).cdPoly);
-        end
+                Af(i) = Af(i).polypolar(UserAirfoil(i).clPoly, UserAirfoil(i).cdPoly);
+                Af(i).Polar.findzerolift();
+                Af(i).Polar.findcllinrange();
 
-        Af(i).Polar.analyze();
-        Af(i).Polar.extrapMethod = UserAirfoil(i).extrapMethod;
+        end
 
     end