Great train gaffe?

[Catlady (Rita Prince Winston)]

--- In the_old_crowd at yahoogroups.com, "carolynwhite2"
<carolynwhite2 at ...> quoted:
>
> <a train spotter:>
> But it won't go anywhere if the engine is facing the buffer stops; 
> it has to be at the other end........
> 
> <HP reader:>
> Um.......but isn't the Hogwarts Express magic? 
> 
> <a train spotter:>
> The Hogwarts express is pointing the wrong way........and it doesn't 
> magically disappear through the buffer stops, because people (and 
> large black dogs) run to the end of the platform waving people off 
> (OK the black dog probably doesn't wave).

But trains can travel with the engine at the back. It's called 'push'
(even if that does contradict the words 'traction' and 'train'). I
found a wikipedia article on push-pull:
<http://en.wikipedia.org/wiki/Push-pull_train>
"This configuration means that the locomotive never needs to be
uncoupled from the train, and ensures fast turnaround times at a
railway station terminus."