FAST: airfoils for high speed and flight quickly.
ACRO: airfoils for aerobatics where the maximum speed dive is not decisive factor;
ALLROUND: airfoils for thermal and slope flying / plain (Discus-
Airfoils with camber of 2.0 suitable not only for use aerobatic also
for slope soaring (Discus-
Airfoils 'R' (Racing):
These airfoils are preferred for high speeds dive due to less drag
offering to high and very high NRe.
Are not as extreme as the specific airfoils D/S and behave well in aerobatics and in slope soaring.
~ 2.8 meter if interested in aerobatics.
Recommended use with standard or heavy wing loadings at least.
alfa0: angle of zero lift
cm0: moment coeff. close to zero lift (Re = 300000)
CLW (CL work): coeff. of lift work
referring to a wing with lambda 5;
(flight dynamics / slope) for gliders is the CL work for slope soaring,
just below the Emax, corresponding autonomy maximum mileage for motor aircraft.
(flight time / plain) CL work for the duration flight, where is the maximum power factor.