2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6829The time evolution of giant (D>1 Mpc) lobe-dominated galaxies is analysed on the basis of dynamical evolution of the entire FRII-type population.4 pages, 2 Postscript figures, uses baltlat1.sty To be published in "Radio astronomy at 70: from Karl Jansky to microjansky", JENAM-2003 Symposium, eds. L.Gurvits and S.Frey, (Baltic Astronomy)Astrophysicstext