In this work we study the fully developed turbulence described by the stochastic
Navier–Stokes equation with finite correlation time of random force. Inertial-range
asymptotic behavior is studied in one-loop approximation and by means of the field theoretic
renormalization group. The inertial-range behavior of the model is described by
limiting case of vanishing correlation time that corresponds to the nontrivial fixed point
of the RG equation. Another fixed point is a saddle type point, i.e., it is infrared attractive
only in one of two possible directions. The existence and stability of fixed points depends
on the relation between the exponents in the energy spectrum E ∝ k1−y and the dispersion
law ω ∝ k2−η.