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[quote]QUOTE: Originally posted by tree68 Many of the long-wheelbase steam locos had "blind drivers" - drivers with no flanges, specifically for that reason. [/quote] Yes, SOME did have blind drivers in the middle. But certainly not all long wheelbase locomotives had blind drivers. And they were in the MIDDLE, which means that the rigid wheelbase is still 20 feet or more for a ten coupled. If you look at the Duplex Drives that PRR and B&O had the wheelbase is huge. They look like articulated locomotives but were not. If the D truck is so much trouble how in the world did the Pennsy ever get a Q2 through a switch? The Q2 and T1 did not have blind drivers.
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