Between 1955 and 1959, twenty five tank wagons were place in service. Nine of these wagons were bogie tanks with E underframes. The remainders had a cylindrical tank mounted on a fixed wheel underframe. The WX tanks were numbered 1 to 15. They were used in a weed spray train with a weed spray van HZ/WZ. In 1963, the WX class was re-lettered to WA. This was because the code conflicted with the introduction of letter 'X' indicating bogie exchange and so the class was re-lettered to WA.
24 May 2011
20 May 2011 - 'WA Weedex Tank'