  We present here new VLBI observations of one FR-I radio galaxy (NGC2484) and
two Broad Line FR-II radio galaxies (3C109 and 3C382). For 3C109 new VLA maps
are also shown. These sources belong to a complete sample of radio galaxies
under study for a better knowledge of their structures at parsec resolution.
The parsec structure of these 3 objects is very similar: asymmetric emission
which we interpret as the core plus a one-sided jet. The parsec scale jet is
always on the same side of the main kpc-scale jet. The limit on the jet to
counterjet brightness ratio, the ratio of the core radio power to the total
radio power and the Synchrotron-self Compton model allow us to derive some
constraints on the jet velocity and orientation with respect to the line of
sight. From these data and from those published on 2 other sources of our
sample, we suggest that parsec scale jets are relativistic in both FR-I and
FR-II radio galaxies and that pc scale properties in FR-I and FR-II radio
galaxies are very similar despite of the large difference between these two
classes of radio galaxies on the kpc scale.
