They are classed as light loco movements so are limited to 75mph (66s are limited to this anyway). Also, you can only have 3 at the most working in multiple in the convoy. Not sure how many you are allowed in a convoy though.
10 locos are allowed in Convoys but only on permitted lines for eg. the West Coast main line and obviously the Immingham-Doncaster line is permitted. Sorry AJP but you were wrong, and btw your a lucky git for getting 6x60's in a convoy!
For record today's light engine movement was the headcode 0X05(out of gauge) code!
I believe that is correct. There are limits on how many traction units (be it locos or MU's) can work in multiple and on how many locos can be hauled "dead in-train". Not sure what these restrictions are, but I would imagine that these factors determine the length of any motive power "convoy".
You are all correct in that '5' loco's are the usual. Loco's represent a lot of dead weight' and handle quite different from a train of similar length and weight. I have not seen more than five in all these years and have taken numerous multiple loco's too and from Eastleigh and north to Bescot. However, I understand that there may be different regulations in relation to some lines and possibly too, under privatisation as to B.R. days. Unless something like this applies with the sighting of 7 loco's then I would think that possibly the first two 66's were running in multiple. 'Multiple' being when two loco's are controled from the one cab and 'tandem' when the rear loco is shut down and/or a failure.
F**k me, 6 60s in one go! Which ones were they? If 097 was in it...
Wish I'd seen that movement! Thanks to Bill EWS for explaining the rules and stuff on multiple locos on movements/trains. Most I've ever seen is 2x EWS 66 and 60034 on a freight going west last week in Newport.
And the flasks are pretty heavy aswell, what with all that steel and water, aswell as the spent uranium. The above though is why DRS prefer to use 2 or more low powered locos like 20s instead of just one high powered loco like a 66. Whilst there should be no risk in the event of a flask train failing, when it comes to Nuclear waste, sometimes being seen to be safe is more important than the actual safety benefit (imagine the press reaction if a loaded flask train broke down in the middle of busy station or someting).