On Thu, 29 Sep 2011 17:17:59 -0700, Beryl wrote:

wrote:
On Wed, 28 Sep 2011 21:23:39 -0700, Beryl wrote:
...
The 701 tail pushes down to hold the nose up, just like the 172
tail does. ...
The Cessna has the camber on the top - and the bottom is flat. The
airfoil causes LIFT in the upward direction.

Where did you see this 172 airfoil? Elevator, or stabilizer?
Stab. I'll have to take a closer look next time I'm at the airport
The camber is not much, compared to the fat stabilizer on the 701, but
from what I remember it is opposite in format from the 701

Many planes have pretty well symetrical stabilizers.

I guess "lifting tail" isn't totally accurate - but a lot less of a
downforce tail. Different hacks for different tracks - a faster plane
gets more downwash from the wings thet forces the tail down much more
at speed. A slow-flying plane like the 701 and Pegazair depends more
on the reversed airfoil for the downforce.
On a very fast plane like the p51 the stabilizer is almost like a
knife blade or a plank - not much camber either way.