Norfolk Southern Railway Company Locomotive Tractive Effort Tests on Norfolk Southern Railway. Norfolk Southern Railway Company, 2011, ROSA P. https://rosap.ntl.bts.gov/view/dot/79576.
This paper describes locomotive tractive effort testing on Norfolk Southern Railway. The purpose was to measure maximum locomotive performance under real-world conditions on wet and dry rail. A variety of DC and AC locomotives were tested, ranging from low power switchers and gensets to high power road units. Typically, two locomotives were used as head-end power, followed by Research Car NS 32 for data collection purposes, and then a number of loaded hoppers that were individually weighed on certified scales. Testing was conducted near Roanoke, VA; the 2.75 mile test segment ascended a 1.38% average grade with a series of four, six and eight degree curves. Loaded hoppers were either added to or cut off the rear as needed to achieve a 10 mph (approx. 16 kph) average speed up the mountain.
Content Notes:
International Heavy Haul (IHHA) specialist technical sessions 2011: Railroading in Extreme Conditions, 19-22 June 2011, Calgary, Alberta, Canada.
Norfolk Southern Railway Company Locomotive Tractive Effort Tests on Norfolk Southern Railway. Norfolk Southern Railway Company, 2011, ROSA P. https://rosap.ntl.bts.gov/view/dot/79576.
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