wrote:

It's a little complicated, and goes all
the way back to the Horton Brothers, and
Mr. Northrop. Coming forward in time, look
at why Andrews Air Force base is named after
Mr. Andrews, and finally... we see why the
greatest airplane flying today, the B-2 Spirit,
as well as the X47B and others like it depend
on a "fly-by-wire" system directed with
software from the Moog corporation.

Mostly because the airplanes are basically unstable as hell and absent
computer stabilizaton they would likely fall out of the air.

That is one of the big reasons why Mr. Northrop's original flying wings
were a failure; there were no computer stabilizaton systems back then.

To maintain yaw and pitch authority within
limited moments at high g's.

More to keep the top side up and the front end pointed ahead.

---
Mark