Locomotive Wiki
File:PRRT1Frame.jpeg

The Frame of a PRR T1 as a prime example of the Duplex-drive frame

Main Article: Duplex locomotive.

Baltimore and Ohio Class N-1[]

Main article: Baltimore and Ohio Class N-1.

Pennsylvania Railroad Class S1[]

Main article: Pennsylvania Railroad Class S1.

Gallery[]

Construction[]

Pennsylvania Railroad Class T1[]

Main article: Pennsylvania Railroad Class T1.

Pennsylvania Railroad Class T1a[]

Main article: Pennsylvania Railroad Class T1a.

Pennsylvania Railroad Class Q1[]

Main article: Pennsylvania Railroad Class Q1.

Pennsylvania Railroad Class Q2[]

Main article: Pennsylvania Railroad Class Q2.

Petiet A111A[]

Main article: Petiet A111A.

LNWR Dreadnought Class[]

Main article: LNWR Dreadnought Class.

Never Built[]

4-6-4-6[]

Main article: 4-6-4-6 Locomotive.

ACE 3000[]

Main article: ACE 3000.

Southern Railway 4-4-4-4[]

Main article: Southern Railway 4-4-4-4.

New York Central C1-a[]

Main article: New York Central C-1a.