So the Silkers would be disqualified why? They didn't reblock, setout or
pickup en route as that would all take too much time. And what other cargos
did they carry? Near as I've been told, the Silk Trains were nothing but
Silk.
Or are you thinking that because they didn't always use the exact same
reefers/boxcars/whatever that they're disqualified?
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Yes. Technically, a unit train is a unit comprised of identical cars.
That's how they were defined in the UK, where they were "invented" back in
the late 1950s early 1960s.
A unit train is not a train of assorted hoppers, nor assorted reefers nor
assorted express reefers, it's a train made up of identical cars, carrying
one product from one shipper to one customer. However, over the years that
definition seems to have been warped slightly, at least on this side of the
Pond.
Cheers.
Roger T.
Home of the late Great Eastern Railway
http://greateasternrailway.com
More photos of the late GER at: -
http://s94.photobucket.com/albums/l99/rogertra/Great_Eastern/