List of U.S. locomotive types

Steam classes Type or class Whyte classification ManufacturerFour-coupled switcher0-4-0Olomana0-4-2  Forney0-4-4   Six-coupled switcher 0-6-0   Eight-coupled switcher 0-8-0  Porter2-4-0   Columbia 2-4-2   Mogul 2-6-0   Prairie 2-6-2   Adriatic 2-6-4   Consolidation 2-8-0   Mikado 2-8-2   Berkshire 2-8-4   Decapod 2-10-0   Santa Fe 2-10-2  Texas2-10-4 Mallet 2-6-6-2   Norfolk & Western 2-6-6-4  Allegheny 2-6-6-6Lima Y3 USRA 2-8-8-2 Yellowstone 2-8-8-4 ? 2-10-10-2 American4-4-0 Atlantic 4-4-2   Duplex 4-4-4-4   Q1/Q2 4-4-6-4 AltoonaTen-Wheeler4-6-0 Pacific 4-6-2   Hudson 4-6-4  Mastodon4-8-0Mountain4-8-2 Northern 4-8-4  Southern Pacific4-10-2Union Pacific4-12-2ALCOU. P. Challenger4-6-6-4Union Pacific Big Boy4-8-8-4ALCO Pennsylvania 6-4-4-6 Altoona

Diesel types Type or class AAR wheel arrangement Manufacturer Country E7 A1A-A1A EMD USA E8 A1A-A1A EMD USA E9 A1A-A1A EMD USA F3 B-B EMD USA F7 B-B EMD USA GP60 B-B EMD USA PA-1 A1A-A1A ALCO USA RS-1 B-B ALCO USA RS-2 B-B ALCO USA RS-2C C-C ALCO USARS-12 B-B Baldwin-Lima-Hamilton USA 4-S B-B Ingalls Shipbuilding USA SD40-2 C-C EMD USA SD45 C-C EMD USA SD60 C-C EMD USA SD70 C-C EMD USA SD70M C-C EMD USA SD70I C-C EMD USA SD70MAC C-C EMD USA SD70ACe C-C EMD USA SD70M-2 C-C EMD USA SD80MAC C-C EMD USA SD90MAC C-C EMD USA