@jhz563 posted:Since the 4-8-4 was so successful on other roads, it makes me think that the PRR must have had a specific reason no to employ the design. It may not have even been technical. But when you have 4-8-2, 2-10-0 and even 4-4-4-4 styles in play, it seems odd not to see a Hudson type.
It all boils down to what is needed for the railroad.
ACL, FEC, UP, NP, WP, SP, MP, C&NW and CRI&P didn't have Hudsons either. Nor did the CB&Q's subsidiaries C&S and FW&D even though the "Q" had them.
Rusty