http://www.railpictures.net/viewphoto.php?id=268720Milwaukee Road ordered a small group of GE U30C's, built to BN specs, for use on Powder River Basin unit coal trains.
Hi[...] The 5652 was built per BN specs for coal train service [...]
what does " built to BN specs" mean?
Did the Milwaukee Road cooperate with BN in the (Powder River) coal business and in this cooperation they share their engines on these coal trains? And so they can simplify the maintence for both railroads when the join engine pool use the same locomotive model (U30C) ?
Or did the Milwaukee Road ordered these engines when GE were building these locomotive model for BN, and to get them cheaper the Milwaukee Road decided to order also this model without any (Milwaukee Road specific) modifikations, so GE can deliver these engines without addional engneering work and tests.