Does anybody have any idea if the NREC locos were built on new frames or re-cycled frames from a SD series locomotive?
The mechanicals of these units are basically SD40
An SD40 weighs approx 167 tonnes, admittedly with heavy US cast bogies
I had a look at GP frames and weights (the Latin American's prefer to convert GP frames to C-C on account of the lighter frame weight) but at 20.22 meters the Qube locos are probably on new frames
A photo of the build plate will help, it will have NREC's model classification
With NREC (non genset) works numbers, the first block of 3 numbers is the order/job number (and also drawing/arrangement number). When NREC recycle a job number it is generally an indication that the loco is a copy or variation of a previous order (not a new design). second 4 numbers (mm/yy) is month/year completed, last block numbers the sequence of the loco within the batch or order. There is a NREC list of sorts circulating, so we can compare the job number to see if it is recycled