White Pass & Yukon Route 73

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 May 1947.[3] After retirement on June 30, 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.

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[1] Build date May 1947
Specifications Configuration: ​  • Whyte 2-8-2  • UIC 1′D1′ h2 Gauge 3 ft (914 mm) Driver dia. 44 in (1.118 m) Wheelbase 55 ft 8 1⁄2 in (16.98 m) Height 12 ft 7 in (3.84 m) Adhesive weight 108,000 lb (49.0 t) Loco weight 145,000 lb (65.8 t) Total weight 248,400 lb (112.7 t) Fuel type Oil Fuel capacity 2,500 US gal (9,500 l; 2,100 imp gal) Water cap 5,000 US gal (19,000 l; 4,200 imp gal) Firebox:  • Firegrate area 36 sq ft (3.3 m2) Boiler 64 in (1.63 m) diameter Boiler pressure 205 lbf/in2 (1.41 MPa) Heating surface 1,676 sq ft (155.7 m2)  • Tubes 993 sq ft (92.3 m2)  • Flues 555 sq ft (51.6 m2)  • Firebox 114 sq ft (10.6 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 adh. 4.24
Career Operators White Pass and Yukon Route Numbers 73 Retired 1964 Restored 1982
[2]