Bescot to Bescot - 18 hours. What is it?

[dangie]

Looking through Realtime Trains I came upon this one.

http://www.realtimetrains.co.uk/train/H64513/2015/12/13/advanced

Runs from Bescot T.M.D. to Bescot T.M.D. via London Euston (twice) and takes approx 18hours.

Can anyone tell me what it is and why does it run?

 

[plastictaffy]

Flying Banana?? It covers the WCML on the slows and fasts. Whatever it is covers a massive amount of trackage - it does the Northampton loop and the fast lines via Weedon, and a lot of the Trent Valley Route, plus the Marston Vale and Abbey line.

 

[Redonian]

It's a railhead treatment train. Saw it last week at Rugby . 2 very dirty 66's top and tailing a number of tanks and a generator .

 

[plastictaffy]

I thought maybe it was that, but it doesn't cover all four tracks.