"Frank Ch. Eigler" wrote in message
...
That only explains why one might prefer 40degrees over 30degrees of
flaps. There is still lift generated at both those settings.

Who said the planes in question are limited to 40 or 30 degrees of flap
extension?

This is why, on some small airplanes, the official short-field landing
procedure involves raising flaps on rollout.

Small airplanes don't have flaps that can be extended far enough to
dramatically increase drag. If they did, you'd probably find manuals that
recommend extending the flaps further, rather than retracting them all the
way (and few manuals actually recommend doing that, as far as I know).

Pete