Texas & Pacific Mountains

The Texas & Pacific purchased five 4-8-2s (road numbers 900 through 904) from the American Locomotive Company in 1925. These "Mountains" were designated as Class M-1 and had 27 x 30 cylinders, 73" drivers, a 210 psi boiler pressure, a tractive effort of 52,500 lbs and weighed 360,500 pounds.

In 1928, another five 4-8-2s were delivered. This time, they came from the Baldwin Locomotive Works and were designated as Class M-2 and assigned road numbers 905 through 909. These locomotives were very similar to the Class M-1s except for an increase in total weight. Later, the boiler pressure of these last five oil burners was raised to 225 psi, which increased the tractive effort to 57,300 pounds.

There are no surviving T&P "Mountains".

Class	Road Numbers	Year Built	Builder
M-1	900-904	1925	ALCO
M-2	905-909	1928	Baldwin

Specifications
	Class M-1	Class M-2
Wheel Arrangement:	4-8-2	4-8-2
Length:	96' - 10"	96' - 10"
Drivers:	73" dia.	73" dia.
Weight on Drivers:	245,500 lbs	245,600 lbs
Locomotive Weight:	360,500 lbs	361,400 lbs
Locomotive & Tender Weight:	640,600 lbs	654,300 lbs
Grate Area:	80.3 sq ft	81.12 sq ft
Cylinders (dia. x stroke):	(2) 27" x 30"	(2) 27" x 30"
Boiler Pressure:	210 psi	225 psi
Tractive Effort:	53,500 lbs	57,300 lbs
Tender Capacity
Water:	14,000 gals.	14,000 gals.
Fuel Oil:	6,000 gals.	6,000 gals.

Texas & Pacific Mountains

References