No. 901
Built By Baldwin Loco. Works
Year Built 1941
Type Pacific
Weight on Drivers Working Order 156,200 LBS.
Weight on Front Truck Working Order 52,200 LBS.
Weight on Back Truck Working Order 40,600 LBS.
Total Weight of Engine Working Order 249,00 LBS.
Total Weight of Tender Loaded 197,500 LBS.
Total Weight of Eng. & Ten. Loaded 446,500 LBS.
Cylinders 22" x 28"
Dia. of Drivers 63"
Tractive Power (85% Boiler Press.) 36,500 LBS.
Factor of Adhesion 4.27
Maximum Width Overall 10'-10"
Fuel Bituminous Coal
Brick Arch American Security
Thermic Syphons 2
Boiler Pressure 200 LBS.
Length of Firebox Inside 115 1/8"
Width of Firebox Inside 78 1/4"
Grate Area 62.5 Sq. ft.
Size of Boiler Tubes 2" x 17'-0"
Number of Tubes 181
Size of Superheater Flues 5 3/8" x 17'-0"
Number of Superheater Flues 32
Total Heating Surface 2660 Sq. Ft.
Superheater 646 Sq. Ft.
Superheater Elesco Type "A"
Stoker Simplex Type "B-K"
Low Water Alarm Barco Type "3A"
Valve Gear Baker
Power Reverse Gear Franklin Type "E"
Air Pump One 8 1/2 Cross Compound