. "Y91" . "Y90" . "Y82" . "South Australian Railways Y class" . "11.8872" . . "Y" . "1885" . "2" . . . . . "Yx" . "Y class steam locomotives" . . "SAR Y 97" . "South Australian Railways Y class" . "1898" . . . . "3.51155" . "Yx141" . "Yx class" . . "F class" . . "Y & Yx" . . . . "Y class" . "129" .