The only articulateds to grace the T & NO's rails were the dozen Mallet Moguls that went into service in 1910. Like the MC-1 series (Locobase 329), these were conventional-cab locomotives with a Baldwin superheater. They were not particularly successful, although it was almost 2 decades before the railroad dismantled them and adapted their boilers to an 0-8-0 switcher layout.
| Specifications | |
|---|---|
| Class | MM-1 |
| Locobase ID | 8728 |
| Railroad | Texas & New Orleans (SP) |
| Whyte | 2-6-6-2 |
| Road Numbers | 950-961 |
| Gauge | Std |
| Builder | Baldwin |
| Year | 1910 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase | 10' |
| Engine Wheelbase | 48.35' |
| Ratio of driving wheelbase to overall engine wheebase | 0.21 |
| Overall Wheelbase (engine & tender) | |
| Axle Loading (Maximum Weight per Axle) | |
| Weight on Drivers | 266000 lbs |
| Engine Weight | 310000 lbs |
| Tender Light Weight | |
| Total Engine and Tender Weight | 310000 lbs |
| Tender Water Capacity | |
| Tender Fuel Capacity (oil/coal) | |
| Minimum weight per yard of rail on which locomotive could run | 73.89 lb rail |
| Geometry Relating to Tractive Effort | |
| Driver Diameter | 57" |
| Boiler Pressure | 200 psi |
| Cylinders (dia x stroke) | 21.5" x 30" |
| Low Pressure Cylinders (dia x stroke) | 33" x 30" |
| Tractive Effort | 58070 lbs |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.58 |
| Heating Ability | |
| Firebox Area | 198 sq. ft |
| Grate Area | 53.20 sq. ft |
| Evaporative Heating Surface | 3907 |
| Superheating Surface | |
| Combined Heating Surface | 3907 |
| Evaporative Heating Surface/Cylinder Volume | 309.93 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 10640 |
| Same as above plus superheater percentage | 10640 |
| Same as above but substitute firebox area for grate area | 39600 |
| Power L1 | 3132.99 |
| Power MT | 155.80 |
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