White Pass & Yukon Route 73

White Pass & Yukon Route 73

White Pass & Yukon Route narrow gauge locomotive #73 in August 2006 at Skagway
Type and origin
Power type Steam
Builder Baldwin Locomotive Works
Serial number 73352
Model 12 28¼ E
Build date May 1947
Specifications
Configuration 2-8-2
UIC classification 1′D1′ h2
Gauge 3 ft (914 mm)
Driver diameter 44 in (1.118 m)
Wheelbase 55 ft 8 1⁄2 in (16.98 m)
Height 12 ft 7 in (3.84 m)
Weight on drivers 108,000 lb (49.0 t)
Locomotive weight 145,000 lb (65.8 t)
Locomotive and tender
combined weight		 248,400 lb (112.7 t)
Fuel type Oil
Fuel capacity 2,500 US gal (9,500 l; 2,100 imp gal)
Water capacity 5,000 US gal (19,000 l; 4,200 imp gal)
Boiler 64 in (1.63 m) diameter
Boiler pressure 205 lbf/in2 (1.41 MPa)
Firegrate area 36 sq ft (3.3 m2)
Heating surface:
– Tubes		 993 sq ft (92.3 m2)
– Flues 555 sq ft (51.6 m2)
– Firebox 114 sq ft (10.6 m2)
– Total 1,676 sq ft (155.7 m2)
Cylinders Two, oudside
Cylinder size 17 in × 22 in (432 mm × 559 mm)
Performance figures
Tractive effort 25,200 lbf (112.1 kN)
Factor of
adhesion		 4.24
Career
Operator(s) White Pass and Yukon Route
Number(s) 73
Retired 1964
Restored 1982

White Pass & Yukon Route 73 is an operating steam locomotive. It was built by the Baldwin Locomotive Works for the White Pass and Yukon Route in 1947. After retirement in 1964, the locomotive was moved to Bennett, British Columbia, in 1968 for display. In 1979 the locomotive was moved again to Whitehorse, Yukon, this time to be restored. Restoration was completed in 1982, and the locomotive has been back in service since then. It is currently the larger of two operating steam locomotives on the line.

References