Hey Flight Simmers!
It has been a long, long time since I took high school level Physics. I am currently studying for a pilot's license and really want to make sure that I understand how gyroscopic instruments work.
Here is a picture of a gyroscope as shown in the flight training book, "From the Ground Up".
Gyroscopic Inertia is described as, "The tendency of any rotating body, if undisturbed to maintain its plane of rotation. When the rotor in Fig. 54 is spinning abouts its axis A-B, the direction of this axis will remain fixed in its space, regardless of how the base of the gyroscope is moved around it."
If the rotor is spinning as its current position clockwise along A-B, and I pick up the entire gyroscope and flip axis F 180 degrees, then the rotor will still move as it is along axis C-D?
Likewise, if I turn F 360 degrees, then the rotor will continue to spin along its axis in the same direction.
Precession is described as "the tendency of a rotating object, when a force is applied perpendicular to its plane of rotation, to turn in the direction of its rotation 90 degrees to its axis and take up a new plane of rotation parallel to the applied force...A push applied in the direction of the arrow G would cause the rotor in its supporting ring to tend to rotate around the axis C-D."
If I apply a force (G) to turn the instrumental 90 degrees to the left along pivot point F, based on the laws of precession, the rotor will also turn 90 degrees along C-D to the left. So now the rotor will be parallel to the applied force and spinning "flat faced".