- Source: Southern Pacific class MC-4
- Amerika Serikat
- Soekarno
- Rumpun bahasa Kolopom
- Daftar film terlaris
- Malaysia Airlines
- Finnair
- California
- Electro-Motive Diesel
- Japan Airlines
- San Francisco
- Southern Pacific class MC-4
- Southern Pacific GS-4 class
- Southern Pacific class MC-1
- Southern Pacific class MC-2
- Southern Pacific class MC-6
- Southern Pacific Transportation Company
- Southern Pacific class AC-4
- Southern Pacific 4449
- Southern Pacific class AC-1
- Southern Pacific class AC-2
Southern Pacific Railroad's MC-4 class of steam locomotive was the second class ordered and built as cab forward locomotives. Southern Pacific (SP) found the MC-2 class sufficient for a proof-of-concept for cab forward locomotives and sought to continue with now tested designs.
In service, SP found that the locomotives were a little too slow for the traffic needs. By 1930, all of the MC-4 class had been "simpled" to use uniform size cylinders and feedwater heaters were installed to address the issue. They were then reclassified as AC-2 locomotives. As rebuilt, the locomotives continued in service through the end of World War II.
References
Diebert, Timothy S. & Strapac, Joseph A. (1987). Southern Pacific Company Steam Locomotive Conpendium. Shade Tree Books. ISBN 0-930742-12-5.