cavelamb wrote:
some mindless drivel again...



http://www.home.earthlink.net/~tp-1/a4412-a.jpg
http://www.home.earthlink.net/~tp-1/a4412-b.jpg

Should be working well now.

(-a) shows section drag and moment plotted against section C Lift.

Note that teh moment curve is pretty flat, and has a negative value.
(pitches nose down?)

At the bottom of the page is the Legend.
Curves for 3, 6 and 9 mill Reynolds Number, and with split flaps.

(-b) is a handier form.
Section CL and Pitch moment are shown plotted agains Angle of Attack.

Note that the Flaps Down curve is Narrower and shihted to the left.
Interpret that aa a narrower AoA range, and at a lower AoA values,
but with higher CL/ (delta)Angle ?

(-c) if I had it handy, would be similar to -b, but details the section
Coefficient of Drag.