  We present deep, multi-VLA-configuration radio images for a set of 18
quasars, having redshifts between 0.36 and 2.5, from the 7C quasar survey.
Approximately one quarter of these quasars have FRI-type twin-jet structures
and the remainder are a broad range of wide angle tail, fat double, classical
double, core-jet and hybrid sources. These images demonstrate that FRI quasars
are prevalent in the universe, rather than non-existent as had been suggested
in the literature prior to the serendipitous discovery of the first FRI quasar
a few years ago, the optically powerful "radio quiet" quasar E1821+643. Some of
the FRI quasars have radio luminosities exceeding the traditional FRI / FRII
break luminosity, however we find no evidence for FRII quasars with
luminosities significantly below the break. We consider whether the existence
of such high luminosity FRI structures is due to the increasingly inhomogeneous
environments in the higher redshift universe.
