indicator is a curved piece of
pipe with a ball in it. The
curve goes up. If the plane is
flying flat and level, gravity
pulls the ball to the bottom of the curve, indicating G-forces
and any turning forces are in
alignment and straight down
towards the bottom of the
plane. Now when you turn the
plane you have greater
turning forces effecting the
ball. if you turn properly,
tilting the wings in the
proper amount for the turn and giving just the right
amount of rudder, the ball
remains at the bottom of the
glass tube, in alignment with
the bottom of the plane.
