USRA Light Mikado

From Wikipedia, the free encyclopedia

You have new messages (last change).
USRA Light Mikado
USRA Light Mikado
Power type Steam
Builder ALCO, Baldwin, Lima
Total production 625 originals plus 641 copies
Configuration 2-8-2
UIC classification 1'D1'
Gauge 4 ft 8½ in (1,435 mm)
Leading wheel size 33 in (838 mm)
Driver size 63 in (1,600 mm)
Trailing wheel size 43 in (1.092 mm)
Wheelbase locomotive: 36 ft 1 in (11.00 m)
+ tender: 71 ft 4½ in (21.76 m)
Fuel type Coal
Boiler pressure 200 lb/in² (1.38 MPa)
Cylinders 2
Cylinder size 26×30 in (660×762 mm)
Valve gear Walschaert valve gear

The USRA Light Mikado was a USRA standard class of steam locomotive designed under the control of the United States Railroad Administration, the nationalized railroad system in the United States during World War I. This was the standard light freight locomotive of the USRA types, and was of 2-8-2 wheel arrangement in the Whyte notation, or "1'D1'" in UIC classification.

General arrangement drawing.
General arrangement drawing.

A total of 625 locomotives were built under the auspices of the USRA, with a further 641 copies built after the end of the USRA's control. The first, for the Baltimore and Ohio Railroad, was completed in July 1918 and given #4500. The locomotives were considered well designed and modern, and were popular and successful. Large numbers remained in service until replaced by diesel locomotives.

With later copies, over 50 railroads used the type, including the following:

Originals: (and copies)

Copies only:

Retrieved from "http://en.wikipedia.org../../../u/s/r/USRA_Light_Mikado_e455.html"