A pair of DQ's......
One doesn't cut it. A 2050 would make more sense.....
Time will tell I guess
Hmmm. 2 x DQ = 2 lots of thirsty fuel sucking 645s vs. 1 x ZB = 1 fuel miser 12CSVT. The fuel cost maths doesn't add up (even if accounting for the higher maintenance cost of the EEs.).
I agree a 2050 would be more sensible, but as the 2050's are the best locos next to the TR's, and would likely to remain needed on the mainline to supplement the TR's, one would be wasted at Boyer. Would a 'D' be better placed at Boyer (although I realise they are fairly much disliked and due for the chopping block)?
I sometimes think Tasrail should have invested in a few more surplus QR/Aurizon 2150's / 2170's (at least another 6 to 8 ) to back up the TR's and cope with growth, allowing the life expired DQ's to all be flogged to South Africa (where there seems to be a ready market). Maybe more peformance was expected from the TR's than these relatively small locos are actually capable of?
It will probably be quite a few more years before Tasrail gets funding to get any more new locos (either a few more TR's or a version of the Aurizon '4100' class, or maybe even the new GE 'Powerhaul'). Problem is, if Tasrail keep expanding their traffic base (which I hope they do) they may run into loco shortages, as the TR's haven't been able to significantly reduce the numbers of locos used on trains - well at least as much as was envisioned.