Ï "Bertie the Bunyip" Ýãñáøå óôï ìÞíõìá
...

Well, ultimately you will get the best rate of climb clean after you have
reached best limb speed, of course, but it's not al that significant at
the
begining unless you have a big obstacle problem off in the distance, so
you're right, best flap position is usually around 20 or 15 or whatever is
handy!

Bertie


An old rule-of-thumb I remember has it that aligning the flap with a down
aileron gives you the best (most lift) flap position (assuming, i presume,
that the ailerons deflect to maximum effectiveness=lift).
FWIW, G.