Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Vol 28, p 293. Works number was 27925 in April 1906.
Perhaps because of delays to the completion of the standard-gauge section of Georgia short line Gainesville Midland, the GM's first 100 took a hard right and wound up on the New Mexico Midland instead.
The NMM was constructed in 1904 as a 10-mile coal hauler that connected Carthage, NM with San Antonio, NM. Presumably, then , the specs quoted for the GM suited the NMM as well: "Loco [sic] must draw 155 to 170 tons of 2000 lbs. of cars an dloading up a grade of 3% in conjunction with 14-degree curve [269-ft curve radius] at 8 to 10 miles per hour, or 450 tons on level track at 50 miles per hour."
The 1 was the only locomotive on the line for most or all of its 26 years of operation.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | 1 |
Locobase ID | 12957 |
Railroad | New Mexico Midland |
Country | USA |
Whyte | 4-6-0 |
Number in Class | 1 |
Road Numbers | 1 |
Gauge | Std |
Number Built | 1 |
Builder | Burnham, Williams & Co |
Year | 1906 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 14 / 4.27 |
Engine Wheelbase (ft / m) | 24.25 / 7.39 |
Ratio of driving wheelbase to overall engine wheelbase | 0.58 |
Overall Wheelbase (engine & tender) (ft / m) | |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 96,000 / 43,545 |
Engine Weight (lbs / kg) | 126,000 / 57,153 |
Tender Loaded Weight (lbs / kg) | 120,000 / 54,431 |
Total Engine and Tender Weight (lbs / kg) | 246,000 / 111,584 |
Tender Water Capacity (gals / ML) | 6000 / 22.73 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 53 / 26.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 56 / 1422 |
Boiler Pressure (psi / kPa) | 180 / 1240 |
High Pressure Cylinders (dia x stroke) (in / mm) | 19" x 24" / 483x610 |
Tractive Effort (lbs / kg) | 23,671 / 10737.00 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.06 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 221 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 15.50 / 4.72 |
Firebox Area (sq ft / m2) | 128 / 11.90 |
Grate Area (sq ft / m2) | 40 / 3.72 |
Evaporative Heating Surface (sq ft / m2) | 1912 / 177.70 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1912 / 177.70 |
Evaporative Heating Surface/Cylinder Volume | 242.64 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 7200 |
Same as above plus superheater percentage | 7200 |
Same as above but substitute firebox area for grate area | 23,040 |
Power L1 | 5441 |
Power MT | 374.85 |