@mark s posted:Weren't most/all calves converted into full-fledged "cows" with the addition of a cab and controls?
I do recall reading somewhere that the "Q" did return most, if not all, of their TR calf B units back to EMD to be upgraded with cabs in the early '50's, a few years after their purchase.
C&O owned two TR3 "Herds", A-B-B sets and two TR4 A-B Cow and Calf sets. None of those six B "calf" units were converted to A units or given cabs. They were transferred to B&O midway in their careers and worked there basically as built, with a few modifications, in all types of service from mainline helpers to humping cars. A few were retired in the late '70's and the remainder retired in the early '80's.
C.J.
