  We present experiments on nematic aerogel oscillating in superfluid $^3$He.
This aerogel consists of nearly parallel mullite strands and is attached to a
vibrating wire moving along the direction of the strands. Previous nuclear
magnetic resonance experiments in $^3$He confined in similar aerogel sample
have shown that the superfluid transition of $^3$He in aerogel occurs into the
polar phase and the transition temperature ($T_{ca}$) is only slightly
suppressed with respect to the superfluid transition temperature of bulk
$^3$He. In present experiments we observed a change in resonant properties of
the vibrating wire at $T=T_{ca}$ and found that below $T_{ca}$ an additional
resonance mode is excited which is coupled to the main resonance.
