by M1a6776
Hi,
I've being reading about Pennsy electrics and have a question regarding the E-44. My understanding is that all 66 locomotives, numbers 4400-4465, were originally delivered to the PRR as E-44 units. Numbers 4400-4459 were delivered with water-cooled ignition rectifiers while numbers 4460-4465 were delivered with solid-state air-cooled silicon diode rectifiers. A follow-on upgrade program then rebuilt 22 locomotives, numbers 4438-4459, as 5000 hp E-44a units with solid-state silicon diode rectifiers and 833 hp traction motors.
I have, however, seen some references state that locomotives 4460-4465 were also E-44a units. Is that correct?
Thanks,
Mike
I've being reading about Pennsy electrics and have a question regarding the E-44. My understanding is that all 66 locomotives, numbers 4400-4465, were originally delivered to the PRR as E-44 units. Numbers 4400-4459 were delivered with water-cooled ignition rectifiers while numbers 4460-4465 were delivered with solid-state air-cooled silicon diode rectifiers. A follow-on upgrade program then rebuilt 22 locomotives, numbers 4438-4459, as 5000 hp E-44a units with solid-state silicon diode rectifiers and 833 hp traction motors.
I have, however, seen some references state that locomotives 4460-4465 were also E-44a units. Is that correct?
Thanks,
Mike
Last edited by M1a6776 on Sun Aug 31, 2008 1:31 pm, edited 1 time in total.