  We derive the late-time behaviour of tilted Bianchi VII_0 cosmologies with an
irrotational radiation fluid as source, and give the asymptotic form of the
general solution as $t \to +\infty$, making comparisons with the dust-filled
models. At first sight the radiation-filled models appear to approximate the
flat FL model at late times, since the Hubble-normalized shear and the tilt
tend to zero and the density parameter tends to one. The Hubble-normalized Weyl
curvature diverges, however, indicating that physically significant anisotropy
remains. We also discuss the influence of a cosmological constant on this
phenomenon.
