How BAD Was The PRR T1 ACTUALLY? скачать в хорошем качестве

How BAD Was The PRR T1 ACTUALLY?

How BAD Was The PRR T1 ACTUALLY? Subscribe: ‪@legendarylocomotives‬ The PRR T1 story isn't about a locomotive that failed—it's about a locomotive that was murdered. On December 20, 1944, the Pennsylvania Railroad authorized $14,125,000 for fifty T1 duplex locomotives, each costing $282,500. In today's money, that's roughly $400 million for machines that would be completely scrapped within a decade. The context matters. PRR had 425 K4 Pacific locomotives that couldn't handle modern passenger loads. They were double-heading them, sometimes triple-heading them, burning cash on multiple crews per train. Baldwin Locomotive Works, which had filed for bankruptcy in 1935, arrived with their solution: the duplex drive. Two sets of cylinders, two sets of drivers, one rigid frame. Chief designer Ralph P. Johnson staked his career on it. The T1s that emerged between 1942 and 1946 looked futuristic. Eighty-inch drivers, over 6,000 indicated horsepower, Raymond Loewy streamlining that made them look fast standing still. The prototypes earned nicknames Flash Gordon and Buck Rogers. Then three institutional failures killed them. First: zero training. PRR took K4 engineers who'd run the same basic design since 1914 and put them on T1s with minimal instruction. A 2008 research article found engineers got basic familiarization, then were sent out. The T1 had sharper throttle response and a 300-psi boiler with Franklin poppet valves that made it far more sensitive than a K4. One T1 replaced two K4s—eliminating a complete crew. Job security wasn't exactly motivating careful operation. Second: corporate cover-up. Franklin Railway Supply guaranteed their poppet valves for 100 mph continuous operation, brief sprints to 125 mph. But valves kept failing. According to later accounts from Franklin employees, they sent a technician to ride trains secretly for a month with a stopwatch. The claim is crews regularly exceeded 130 mph, with some runs hitting 142 mph. The cab speedometers stopped at 120 mph—beyond that, you were blind. Franklin management reportedly developed stronger alloys and retrofitted the fleet in the late 1940s rather than tell PRR their engineers were destroying components through overspeeding. They focused on tougher materials instead of confronting the operational problem. Third: evidence destruction. In 1948, locomotive 5500 was rebuilt after a collision with Type B2 rotary cam valve gear instead of the original Type A oscillating cam. Engineers and maintenance crews said it ran noticeably better. PRR considered converting more units. They chose not to. By 1952, every T1 was out of service. Scrapping ran from 1951 to 1956. Some locomotives were only five years old when cut up. Fifty-two locomotives. Zero survivors. PRR preserved K4s, electrics, oddities—but not one T1. The pattern is clear. A railroad gambles on experimental technology from a builder emerging from bankruptcy. Crews get minimal training on machines that behave nothing like predecessors. A supplier focuses on metallurgical fixes instead of reporting systematic overspeeding. Management shifts to diesel before validated solutions can be applied. Then every locomotive gets destroyed before a mature, refined T1 can exist. The T1 Trust is now building number 5550 with Type B2 valve gear and modern wheelslip control. Maybe we'll finally see what a properly developed T1 could do. But that's the future. The original fifty-two collapsed because PRR spent a fortune on machines they had no plan to implement, trained crews poorly, and scrapped the fleet before the design could mature.