Posted by Tom Farence on February 8, 2015 
Check out the Leslie S5T on a high mount. On the Milwaukee we had B-units with single tone honkers mounted on the ends but nothing like that.
Posted by Doug Wilson on February 8, 2015 
Observe the body bolster on the left side of the power truck. Observe the power truck necking-out into a span bolster mounting the pony truck. Presumably the center pin was on the bolster somewhere near the inside axle of the pony truck.
Posted by Nathan Richters on February 9, 2015 
Very cool to see a photo which shows some of the details of this unique locomotive.
Posted by Sport! on February 9, 2015 
"No Guts, No Glory"
Posted by Jim McCulloch on February 9, 2015 
The cab unit was former UP PA1 607 built in January 1947 (c/n 76311), retired in March 1961. It was rebuilt, retaining its Model 244-16 prime mover, adding 2,000 horsepower to the locomotive consist. The B-unit was former Great Northern Railway class W-1 electric locomotive built by GE in June 1947 (c/n 28448), retired by the GN in August 1956, sold to the UP as scrap in 1959. Between 1959 and 1962, the UP designed and built a coal-fired turbine, using a modified turbine power plant from a retired 50-75 series turbine locomotive, producing 5,000 horsepower. The coal tender was from Challenger (4-6-6-4) 3990. The completed 7,000 horsepower locomotive entered service in October 1962, and tested until May 1964, making its last run on May 12. It was deemed a failure, due to turbine blade erosion and soot build-up caused by the coal fuel. It ran less than 10,000 miles before being struck from the roster on March 15, 1968. The cab unit was traded to GE, the B-unit and tender were scrapped by the UP at Omaha.
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