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Most powerful diesel-hydraulic locomotive ever built. Challenger: Union Pacific: 3950-3999 ALCO: 1936–43 Steam 4-6-6-4: 485 tonnes (535 short tons) 433 kilonewtons (97,350 lbf) 3,728 kilowatts (5,000 hp) Two locomotives preserved, one on static display. Union Pacific 3985 operated for company PR and occasional excursion service from 1981 to 2010.
The ACE 3000 was one of the most publicised attempts at modern steam, but the project ultimately failed due to lack of funds. The CSR Project 130, [ 31 ] intended to develop a modern steam locomotive (based on an existing ATSF 3460 class locomotive) capable of higher-speed passenger transport at more than 100 mph, and tested up to 130 mph ...
All sold to Progress Rail. 8 units were resold to Western New York & Pennsylvania Railroad; units 6000, 6003, and 6006-6007 later returned to GECX by 2024. [10] Union Pacific: Standard 7500-7509 10 November 1995-December 1996 The first ten units were originally numbered 7000-7009. 7000 was the first AC6000CW ever built.
High-speed rail is the fastest and most efficient ground-based method of commercial transportation. However, due to requirements for large track curves, gentle gradients and grade separated track the construction of high-speed rail is more costly than conventional rail and therefore does not always present an economical advantage over ...
According to the International Energy Agency, "On average, rail requires 12 times less energy and emits 7–11 times less GHGs per passenger-km travelled than private vehicles and airplanes, making it the most efficient mode of motorised passenger transport. Aside from shipping, freight rail is the most energy-efficient and least carbon ...
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The most useful instrument for analyzing the performance of steam engines is the steam engine indicator. Early versions were in use by 1851, [56] but the most successful indicator was developed for the high speed engine inventor and manufacturer Charles Porter by Charles Richard and exhibited at London Exhibition in 1862. [30]
In most cases, each passenger locomotive was fitted with a steam generator and a feedwater supply tank. The steam generator used some of the locomotive's diesel fuel supply for combustion . When a steam-generator–equipped locomotive was not available for a run, a so-called "heating car" fitted with one or two steam generators was inserted ...