Data from NdeM 1946 Locomotive Diagrams Standard Gauge supplied in May 2005 by Allen Stanley.
The two former Bullfrog & Goldfield Consolidations produced in 1906 (Locobase 11971) came to the NdeM in 1927 by way of the American Smelting & Refining Corporation. By the time of the 1946 diagram, the boiler had lost 30 tubes, but the firebox heating surface had increased by 70 sq ft (6.50 sq m). This may all have been associated with a conversion to oil-firing. The modified engines were a bit lighter on the rails as well. 1366 was retired in September 1953 while 1364 lasted until July 1958.
Principal Dimensions by Steve Llanso of Sweat House Media | |
---|---|
Class | G-30 |
Locobase ID | 11972 |
Railroad | Nacional de Mexico (NdeM) |
Country | USA |
Whyte | 2-8-0 |
Number in Class | 2 |
Road Numbers | 1365-1366 |
Gauge | Std |
Number Built | |
Builder | |
Year | 1930 |
Valve Gear | Stephenson |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 14.67 / 4.47 |
Engine Wheelbase (ft / m) | 23.42 / 7.14 |
Ratio of driving wheelbase to overall engine wheelbase | 0.63 |
Overall Wheelbase (engine & tender) (ft / m) | 57.50 / 17.53 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 160,716 / 72,900 |
Engine Weight (lbs / kg) | 178,574 / 81,000 |
Tender Loaded Weight (lbs / kg) | 158,732 / 72,000 |
Total Engine and Tender Weight (lbs / kg) | 337,306 / 153,000 |
Tender Water Capacity (gals / ML) | 7000 / 26.52 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 3000 / 11,355 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 67 / 33.50 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 55.50 / 1410 |
Boiler Pressure (psi / kPa) | 180 / 12.40 |
High Pressure Cylinders (dia x stroke) (in / mm) | 22" x 28" / 559x711 |
Tractive Effort (lbs / kg) | 37,360 / 16946.23 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.30 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 314 - 2" / 51 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 14.58 / 4.44 |
Firebox Area (sq ft / m2) | 266.95 / 24.80 |
Grate Area (sq ft / m2) | 43.50 / 4.04 |
Evaporative Heating Surface (sq ft / m2) | 2665 / 247.68 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 2665 / 247.68 |
Evaporative Heating Surface/Cylinder Volume | 216.31 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 7830 |
Same as above plus superheater percentage | 7830 |
Same as above but substitute firebox area for grate area | 48,051 |
Power L1 | 5406 |
Power MT | 296.63 |