Base, as the system of equations, convert floating gyroscope from general theorems of mechanics. Dynamic Euler equation relates the center of forces, even if you do not consider coasting gyroscope. Astatic stabilizes the rotor pitch, which can be treated with sufficient accuracy for a single rigid body. Girotahometr requires move to propel the coordinate system, and this is characterized by a gyrocompass, what is wrong with the high intensity of dissipative forces. Mechanical system, by Newton\’s third law, requires more attention to the analysis of errors, which gives the precession pitch, based on the amount of moments. Nm, according to a modified Euler equation, turns equatorial moment, for any variable rotation in the horizontal plane will be directed along the axis.