Originally Posted by
Just This Once...
Last time I rotated your concept and pointed the nose at the nadir my G meter seemed pegged at zero. Maybe it was broken.
Effectively it was broken for the task at hand, as in that attitude it no longer shows vertical acceleration. If you swivelled it 90 degrees so it shows acceleration along nose-tail (i.e., vertically) and flew a constant TAS downward, it would show 1G.
Same as if you stand on a bathroom scale in an elevator (or, lift) travelling up or down at a constant rate, it will show the same as when you're standing on it in the bathroom.
You say (correctly) that "gravity is an acceleration," which generates a force, and if we were subject to only that force and no other, then we would therefore be accelerating. But the part you're missing is that we are also subject to other forces at the same time, such as the floor of the bathroom (or the lift of an aircraft in steady flight) pushing up on us. Because that force balances the gravitational force, the sum is zero and we do not accelerate.