I have never heard of a Mallet hinged loco . What makes it so ? I see no obvious signs that this loco is anything other than a regular 2-10-4 although there is an odd looking drive cylinder on the firemans side .
I don't know how to explain the valve. But I said it was the T&P that bought Texas types with hinged frames. The Santa Fe did not. 3829 in particular was built before that fad started. You know articulated locomotives had big swivels in their frames, that's what made them articulated. They were called Mallet hinges. Well certain superpower engines like 4197 above in post 467 above had those hinges, too. The trailing truck was an articulated section of the frame, with the drawbar pocket built into the back. This allowed it to carry a much larger ash pan, which didn't have to be cleaned out as often. The Santa Fe never went in for that, because it took weight off the driving wheels, reducing tractive effort. They also had some trouble backing through switches. Besides, in the end the Santa Fe converted all their remaining steam to oil fuel (the ones that hadn't been oil burners since they were built), making the oversized ash pan unnecessary. But it was a major feature of the Lima Superpower Revolution of the late twenties, and the Santa Fe's 4101 Class were among the few 2-8-4 types that lacked the feature. Go down to Palestine, Texas and look under T&P 610 some time. Or click here to get some idea of it: https://www.railpictures.net/viewphoto.php?id=68425
I recollect something like that too, along with loss of a U.S. Mail contract. The Super C meant high rates and the Santa Fe learned that not all shippers were willing to pay for expedited delivery. Sometime later, the Santa Fe studied the speed at which TOFC trailers were picked up at terminals after arrival and confirmed that tiered pricing was wise. Some trailers were quickly picked up, while others would sit for a day or two. Matching rates to service earned better revenue, controlled costs and pleased shippers too.
EXACTLY! It follows closely after Rule #1 (my model railroad, my rules). I do try to follow prototype, though. So there are times you can find a photo, and then model what you see, even though it would normally seem WAY out of place. I enjoy running an ABA set of NYC Lightning Stripe "Sharknose" locomotives on my 1950s era Rock Island layout from time to time. Why is this accurate? I have a picture (from 1958), and an article to back it up, to prove that the Rock Island, being short of motive power, would use these in grain service from time to time. On loan, I assume. Not sure of the details behind that transaction between the two railroads.
Thank you for the Info ! I had never heard of hinging the frame in that area . You'd think in 60 years I would have come across this.....LOL Mike
Wow. Modeling the Santa Fe, I rarely get jealous of what others can run. But I had no idea modeling the Rock had that particular benefit...
I always thought it was a shame that the Santa Fe "Blunt Ended" its beautiful Vista series lounge observation cars in 1956 to allow mid train service.
3197 escaped that fate, at least for a time. The Santa Fe didn't go in for "vest pocket streamliners" in the 30s, but they had this one in the 60s.
