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Locomotive number 60004 rolled out of Baldwin Locomotive Works (founded in 1831 by Matthias Baldwin) in May of 1927. She was the 13th 4-8-4 type locomotive built in America. The first twelve have all been scrapped, leaving only 3751 as the oldest 4-8-4 in existence.
She was the first class of Santa Fe 4-8-4's (a 4-8-4 locomotive has four leading wheels arranged in a leading truck , eight coupled driving wheels and four trailing wheels in a trailing truck). Each costing $99,712.77 as delivered.
The newly developed Type E super heater was applied. Included was a cast-steel engine bed and separate cast cylinders, with cross-counter balanced 73 inch drive wheels.The total engine weight was 432,240 lbs. The total engine-tender weight tipped the scales at 724,600 lbs. She had a starting tractive effort of 66,000 lbs, with a maximum drawbar horsepower of 3,200 at 40 mph.
Although due to larger drivers the original tractive effort of 66,000 lbs remained the same.The conversion did however allow for 90 miles per hour speeds and raised the horsepower to 3,600 at 50 mph. This major rebuilding was a success in producing a much more powerful and efficient locomotive. With the heavy wartime traffic commencing after December 7, 1941, Santa Fe attempted to obtain more motive power, both steam and diesel from the War Production Board, which had assumed control of locomotive production and allocation
C. ordered automatic train control to be used on locomotives exceeding 79 mph.3751 received new equipment mounted on the right trailer truck frame which permitted her timetable a maximum speed of 90 mph.
Sixty-four 4-8-4's made mileages of 350,343 in June and 343,627 in July.
Article Source: http://www.articledashboard.com.
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