Why is this train running and what is it?

[Class 66's]

Hi all, I have been browsing RTT for the next week at Wellingborough and I saw this which seems to run most days along the line. What is it and why is it running. Thanks all, in advance.

Train:
http://www.realtimetrains.co.uk/train/R90318/2015/06/17/advanced

 

[GrimsbyPacer]

The link provided shows it as a West Coast Railways train.
It may be a tour train???

 

[The Planner]

Its a Q code so it runs as required and is likely to be just a loco being a class 0. Q headcodes are normally reserved for test trains.

 

[Tomnick]

It's only STP'd in for next week - there's normally no such schedule. It'll be interesting to see whether it actually runs. Possibly some sort of route learner, perhaps?

 

[littledude]

Q headcodes are simply to tell the signaller that the train is not to be diverted from booked route and must follow the schedule exactly. Usually this is test trains as they obviously have a specific line to test but other things such as trains with an RT3973-HAW (heavy axle weight special dispensation) sometimes have to follow specific routings.

Tom