"Maxwell" wrote in
:


"Dudley Henriques" wrote in message
news:2007061121444816807-dhenriques@rcncom...
On 2007-06-10 22:41:49 -0400, "Maxwell" said:

That is either untrue, or real misleading. The Blues fly with a
different purpose, keep the aircraft on trajectory. When they are
flying a knife edge,
they are hardly coordinated, as with many other maneuvers.

A 1g barrel roll can be done, but the required trajectory of the
aircraft is
not going to be one that is necessarily eye pleasing for ground
demonstration purposes.

Actually, when the Blues or anyone else is in knife edge, they are
indeed in coordinated flight. You hold the aircraft in knife edge
with top rudder and forward neutral stick; this control pressure
combination has to be perfectly coordinated to maintain knife edge.
You are confusing coordinated with meaning the control pressures must
be complementary which is a common mistake often made.
The first lesson we teach in aerobatics is that "coordinated" has
absolutely nothing whatsoever to do with the controls not being
crossed. Actually, any good flight instructor will teach this to a
new primary student during the first hour of dual :-)
Dudley Henriques


Then define coordinated.


All controls in the appropriate postion for the desired flight path and
attitude.


Bertie