Anyhow, CL, CD or Cwhatever values mean absolutely NOTHING if reference surface (and reference length for couple of forces) is unknown. Anybody with basic notions in aerodynamics should know this. I can announce CL values of 1700 for a brick if I just select a reference surface small enough if I wish to do so and nobody could claim me wrong.

The CL values in this report are only interesting in relative terms with respect to different flap angles.