Oooops! I left NASA out of that URL and then forgot to test the
link in the message before I pressed send. The corrected version is:
"Aerodynamic loads on a leading-edge flap and a leading-edge slat on
the NACA 64A101 airfoil section" John A Kelly & George B McCullough
http://naca.larc.nasa.gov/reports/19...ca-tn-3220.pdf

Sorry about that.

Peter