wrote:
On Thursday, January 10, 2013 12:11:44 PM UTC-5, Bob Moore wrote:
Mark IV wrote

If flying wings are "intrinsically unstable", then why

did millions of years of evolution not produce birds

with vertical stabilizers.



Probably because nature has provided them with built-in

computer controled stability provided by the brain.

We have a winner. Yes, that is the
correct answer. The best design possible
is a flying wing, without a vertical
stabilizer, which is able to "morph"
it's trailing edge in response to subtle
and sensitive rapid changes in pressure.

Been there, done that; see F-111.

Airplanes that can "morph" are difficult and expensive to build and
expensive to maintain.

And what is the "best design possible" and is it the same for a GA aircraft,
crop duster, short haul freighter, bush plane, intercontinental airliner,
fighter, close air support (AKA tank killer), and a bomber?

There is now enough computing power in
the average cell-phone to think that fast.

Computing power isn't the problem and hasn't been for decades.