"Mike Rhodes"
On Thu, 6 Jan 2005 13:34:48 -0800, "Peter Duniho"

Your assertion that "With full flaps its easy to end up real slow in a
slip
and approach a stall" is just plain nonsense, and certainly has nothing to
do with the *warning* (not prohibition) against slipping while flaps are
extended (even if there were something to your claim about flaps making it
easier to stall).

Pete


Odd, but interesting thread. I haven't heard of tail stall before.

Very uncommon and very serious. Weight and balance (forward C of G) and
icing can cause it. It's just a wing.

But if I've got the basics correct, don't flaps allow the aircraft to
fly at slow airspeeds with a lower angle of attack, including both
wing and tailplane?

Wing.

So flaps should reduce the likelihood of any
stall, provided enough power is applied to those draggy 40 deg
settings. The wing stalls at a specific angle of attack, and I don't
think the flaps change that characteristic; not that it has been
suggested anywhere.

Flaps change the shape of the wing and allow it to fly at a higher angle of
attack before stall. A higher angle of attack before stall allows a higher
coeiffcient of lift. Stall speed is reduced. Drag is increased. Forward
visibility is improved at slow airspeeds. Drag increases. Top speed is
reduced (white arc). Trim is affected noticibly. That's all the practical
stuff you need to know. But:

http://www.aerospaceweb.org/question...cs/q0008.shtml
http://www.aerospaceweb.org/question...cs/q0005.shtml
http://www.av8n.com/how/htm/vdamp.ht...ffect-of-flaps

Actually, read all of this:

http://www.av8n.com/how/


I may be wrong, but isn't this one reason why airliners need flaps at
landing? So they don't bounce the tail on touchdown? Or more likely
so the pilot can see the landing area; aside from just reducing
required runway length.

No.

moo