  For the linear string baryon model $q$-$q$-$q$ the small disturbances of its
rotational motion (quasirotational states) are investigated. The spectrum of
these states is obtained in the form of Fourier series and the complex
eigenfrequencies are found in this spectrum. So the classic rotational motions
of the linear string baryon model are unstable (unlike the similar motions for
the string with massive ends). This instability differs from its analog for the
three-string baryon model.
