Steam Locomotive No. 3985

Vital Statistics:
Tender Type: 14-wheeled
Water Capacity: 25,000 gallons
Fuel: 6,450 gallons
No. 5 oil
Gauge of Track: 4 ft. 8-1/2 in.
Cylinder: Diameter: 21 in.
Stroke: 32 in.
Driving Wheel Diameter: 69 in.
Boiler: Inside Diameter: 94-11/16 in.
Pressure: 280 lbs.
Fire Box: Length: 187-1/32 in.
Width: 108-3/16 in.
Tubes: 2-1/4 in. Diameter: 45 x 20 ft. 0 in.
4 in. Diameter: 177
Wheel Base: Driving: 12 ft. 2 in. & 12 ft. 2 in.
Engine: 60 ft. 4-1/2 in.
Engine & Tender: 121 ft.10-7/8 in.
Weight in Working Order,
Pounds:
Leading: 102,300
Driving: 404,000
Trailing: 121,600
Engine: 627,900
Tender: 446,000
Evaporating Surfaces,
Square Feet:
Tubes: 527
Flues: 3,687
Fire Box: 500
Circulators: 81
Total: 4,795
Superheating Surface,
Square Feet:
2,162
Grate Area: Removed, 1990
Maximum Tractive Power: 97,350 lbs.
Factor of Adhesion: 4.17