It is NOT that simple.

Allow me to put an external force, applied with an elevator or a
thruster or an engine and I can turn it around any center you choose,
including one external to the airframe.

Tell us, please, where is the center of rotation in an airplane
flying a loop?

Where is the center of rotation of the orbitor, flying nose first, as
it circles the earth at constant altitude and attitude relative to
the local horizon?

One of the principles underlying scientific 'theory' is, if one
example show the theory is flawed, it's the theory, not the
observation, that should be abandoned.

I submit the center of rotation of the airplane flying the loop is the
center of the loop, and the center of rotation of the orbitor is some
4000 miles from its center of gravity. I'd appreciate knowing the
flaws in these examples.




On Jan 27, 1:50*am, Nomen Nescio wrote:
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* * *Like I said earlier, CG is probably good enough for our puddle-
jumper purposes, but I think the guys who study advanced aerodynamics
would have something to add to it. I don't think it's really all that
simple.
ing o
Yea, it's REALLY all that simple!

There's a flaw in your seesaw example that makes it distinctly different
from an aircraft. Figure out the flaw, and reality will fall right into place.

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