UP3985 wrote:This engine was listed among the US' biggest Diesel flops of all time! They were a maintenance man's nightmare!
It would be a mistake to conclude that these engines were unreliable. In general, Baldwin diesels were rugged machines, built around very reliable marine power plants, and put together very much in the tradition of steam locomotive construction. If you ever get your hands on
Trains issues from the early-'60s, you'll run across articles about old Baldwins still being the preferred power for slow, heavy freight service, such as coal drags, to the extent that there was one coal hauler that was buying-up other railroads' castoffs into the early-'70s. The operating crews, in general, loved these units because of the repeated abuse they could take.
What made them a nightmare to the shop crews was that they were put together very much in the tradition of steam locomotive construction (my repetition here is deliberate), in that there was no standard plan for wiring the generator to the traction motors, nor for plumbing the air brake system, nor for for connecting just about any of the other components of the unit to each other: they simply went where the shift foreman decided they should go, much the same way as the steamfitting for the various appliances on a steam locomotive had been done for at least a couple of generations. The big difference - apart form the cost inefficiencies of building locomotives this way - was that it was much easier for the shop crews to read a mess of pipes on the outside of a boiler than it was to read a mess of cables and pipes snaking in and out of an underframe and around a carbody or a hood: a lot of expensive shop time was spent just trying to figure out where everything went before they could actually fix anything.
On the Class 1s, small groups of engines quickly became orphans as the green eyeshade types looked to cut costs by standardising things - this is where EMD's marketing to the railroads was brilliant, even if their product was somewhat inferior - and those railroads that had enough of them tended to concentrate them around a minimum number of shops equipped to deal with them, the Pennsy's practice being probably the best case in point.
UP cancelled their two demonstrators, which were supposed to have been the forerunners of a larger order (around two dozen, IIRC) for a variety of reasons, primarily being the Pennsy's bad experience with the turbochargers. The UP was probably the last stronghold of "big engine" thinking from the steam days, and indeed, they held onto it into the era of second generation diesels. Given their business model and traffic patterns, they had very good reason to do so. A unit that could lose 17% of it's power rating without notice was simply not reliable enough for perishables traffic, and there were more efficient, effective and reliable ways to put 10,000HP at the front of a train. The UP ended up doing it with gas turbines, and their shorter rigid wheelbases turned out to be much easier on the track at the speeds involved.
The Mexicans, OTOH, ran their Centipedes until fairly late in the game, and developed a different philosophy about locomotive maintenance and rebuilding. It was considered odd at the time it first came to the attention of fans up north, but a bit over half a decade later, their example became the basis of what is now an ongoing locomotive rebuilding industry, some of the products of which are every bit as creative as the early Mexican one-offs. A strong contender for the record of Baldwin longevity would be the NOPB, who were still running some of the earliest Baldwin switchers into the early '70s, at times switching loads and empties for NASA's Michoud plant, which was then heavily involved in the the Apollo program. There were other interesting survivors overseas, as well.
I agree that activities involving one or more unit failures would make for very interesting challenges. Such things became frequent into the '60s, particularly in EMDs with 567B engines, and to a lesser extent , the 567C. CGW, at that point, was putting eight to ten EMDs on the front of a train in the hope that three or four of them would still be running when the train got to the other end of the division. Other railroads were a bit less extreme - you might be hoping for two out of three, or maybe three out of five - but it was the nature of the beast until the early-'70s, when EMD's Dash 2s and GE's XR series U-Boats came along. One Penn Central story, told to me by a guy who heard it from an eyewitness, involved a slow freight with a mix of Alcos and EMDs on the front, including an FA with a blown turbocharger, pouring black smoke out of the carbody grills: two more units failed as it rolled through the junction and over the adjacent movable bridge, and the whole railroad (as well as the navigable waterway) was tied-up for the rest of the day. That one might be a bit extreme for a simulator, but handing a heavy freight with a dead unit would make for a real test of skill.