An MFS-D ballast hopper, number DR92455, in the Network Rail depot at Taunton. Up to 44 MFS wagons (German for <i>Materialförder- und Siloeinheit</i> or material conveyor and storage unit) are formed into each High Output Ballast Cleaner train, 22 full and 22 empty for spoil at the start of the night's work. Most are MFS-Ds such as this but between 4 and 8 will be MFS-SB with swivelling conveyors that can discharge ballast or spoil to the side of the track.
<a href="//commons.wikimedia.org/wiki/User:Geof_Sheppard" title="User:Geof Sheppard">Geof Sheppard</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>