Firebox had syphons. The nearly square cylinders were fed by 14" (356 mm) piston valves. A thicker tire (74") more than offset an increase in boiler pressure to 225 psi (15.5 bar), so the tractive effort dropped slightly.
The Brooks engines had built-up frames while the Limas were delivered with cast-steel beds. The Alcos would be given cast-steel beds just after World War Two. The L-1b's boilers were pressed to 215 psi (14.8 bar) and the engines weighed slightly more. By the end of their careers, all eight would roll on Timken roller bearings.
These were among the very first 4-6-4s to be built. Drury's (1993) comment on these engines: They "...looked bigger than they were after the smoke lifters were added. In actuality, they were little more than a USRA light Pacific with a four-wheel trailing truck."
By the end of their days, the L-1s would be photographed pulling local freights and other secondary services.
|Specifications by Steve Llanso of Sweat House Media|
|Railroad||New York, Chicago & St Louis (Nickel Plate)|
|Number in Class||8|
|Locomotive Length and Weight|
|Ratio of driving wheelbase to overall engine wheebase||0.34|
|Overall Wheelbase (engine & tender)||73.65'|
|Axle Loading (Maximum Weight per Axle)||58700 lbs|
|Weight on Drivers||175475 lbs|
|Engine Weight||316500 lbs|
|Tender Light Weight||206200 lbs|
|Total Engine and Tender Weight||522700 lbs|
|Tender Water Capacity||11000 gals|
|Tender Fuel Capacity (oil/coal)||16 tons|
|Minimum weight of rail (calculated)||97 lb/yard|
|Geometry Relating to Tractive Effort|
|Boiler Pressure||215 psi|
|Cylinders (dia x stroke)||25" x 26"|
|Tractive Effort||40681 lbs|
|Factor of Adhesion (Weight on Drivers/Tractive Effort)||4.31|
|Firebox Area||302 sq. ft|
|Grate Area||66.80 sq. ft|
|Evaporative Heating Surface||4219 sq. ft|
|Superheating Surface||1055 sq. ft|
|Combined Heating Surface||5274 sq. ft|
|Evaporative Heating Surface/Cylinder Volume||285.61|
|Computations Relating to Power Output (More Information)|
|Robert LeMassena's Power Computation||14362|
|Same as above plus superheater percentage||17234|
|Same as above but substitute firebox area for grate area||77916|