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Page views since 2023-01-26: 196545
Louisville & Nashville class K-2
United States | 1910 | 35 produced
No. 151 in 1940 in Mobile, Alabama
No. 151 in 1940 in Mobile, Alabama
collection Taylor Rush

Based on the K-1, the L&N ordered the K-2 in 1910, which was now operated with superheated steam. For this purpose, the number of tubes was more than halved in order to be able to accommodate flues with superheater elements. Rogers initially manufactured 20 of these locomotives, and 15 more were rebuilt from K-1.

Like most Pacifics in the USA, they initially hauled the main express trains, but after the introduction of more powerful locomotives they were increasingly pushed into service in front of regular passenger and commuter trains. The number 152, which was built as K-1, still exists today. It has been owned by the Kentucky Railroad Museum since 1957 and is currently being refurbished.

General
Built1910
ManufacturerRogers
Axle config4-6-2 (Pacific) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Wheelbase30 ft 2 in
Fixed wheelbase12 ft
Total wheelbase61 ft 7 in
Service weight201,500 lbs
Adhesive weight126,400 lbs
Total weight344,900 lbs
Axle load46,600 lbs
Water capacity7,000 us gal
Fuel capacity30,000 lbs (coal)
Power
Power sourcesteam
Estimated power1,900 hp (1,417 kW)
Optimal speed42 mph
Starting effort28,991 lbf
Power Plant
Driver diameter69 in
Boiler pressure200 psi
Expansion typesimple
Cylinderstwo, 20 1/2 x 28 in
Boiler
Grate area45 sq ft
Firebox area234 sq ft
Tube heating area1,989 sq ft
Evaporative heating area2,223 sq ft
Superheater area440 sq ft
Total heating area2,663 sq ft
Calculated Values
steam locomotive
passenger
express
last changed: 03/2024
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