The M1 was a class of steam locomotive of the Pennsylvania Railroad. It was a class of heavy mixed-traffic locomotives of the 4-8-2 "Mountain" arrangement, which uses four pairs of driving wheels with
PRR M1a on display at the 1939 World's Fair. Pipe on the smokebox and box behind stack are components of the feedwater heater.
The twin cross-compound air compressors on the side of the M1a.
Pennsylvania Railroad M1 6707 builder's photo
Pennsylvania Railroad M1b #6755 at the Railroad Museum of Pennsylvania on July 31, 2015.
New York Central Mohawk
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The New York Central Railroad called the 4-8-2 type of steam locomotive the Mohawk type. It was known as the Mountain type on other roads, but the New York Central did not see the name as fitting on i
Pennsylvania Railroad class M1
…Railroad T1 Steam Locomotive Trust in August, 2017. The tender will be restored for eventual use behind the new-build T1 class locomotive #5550. NYC Mohawk: The New York Central Railroad's equivalent of the M1, a dual mode 4-8-2 "Mountain" type steam locomotive. Staufer, Alvin W. (1962). Pennsy Power…
New York Central 3001
Lima-built L1c #2631 in 1930, after a bundle-type Elesco feedwater heater was added.
Preserved L-2d class locomotive Number 2933 at the Museum of Transportation in St. Louis in August, 1970
L-3c class locomotive number 3060 leads a freight train in Crestline, Ohio, on August 30, 1952