On Tue, 29 Jul 2003 07:46:34 -0700, Tim Bengtson
wrote:

Steve House wrote:

Well certainly textbooks can be in error. But where are the odds of
accuracy better, several independent pieces of instructional material vetted
through virtually every ground school and CFI in the country or a couple of
lone voices on the internet? What is your source
for the contrary view?

Steve, the problem is that all those textbooks were written by pilots.
Remember, the reason they became pilots in the first place is that they
couldn't do math well enough to become engineers :-) :-) Anyway, here
is a good reference that talks about flying a stalled wing:

http://www.av8n.com/how/htm/vdamp.html#sec-beyond-stall

If you get a chance, read the whole online book. It's not dumbed-down
like the typical pilot texts.

My experience disagrees with a couple of his points, but nothing major
and quite possibly I'm misinterpreting what I've seen.

If I'm in level flight and extend the flaps 10 or 15 degrees and
maintain the speed my plane *will* climb. To me that says the wing
has more lift when I extend the flaps 10 or 15 degrees than with no
flaps.

The other is that all bits of the wing contribute equally to the lift.
I'm probably missing something, but I think different areas of the
wing produce different amounts of lift per square inch, or square
foot. Particularly where the airfoil changes shape between the root
and the tip as opposed to a constant cord wing like the old Hershey
bar wing on the Cherokees.

Roger Halstead (K8RI EN73 & ARRL Life Member)
www.rogerhalstead.com
N833R World's oldest Debonair? (S# CD-2)

Tim