Data from Matthias Forney, Catechism of the Locomotive, Fig 107. See also "Brooks' Double Ended Locomotive," National Car & Locomotive Builder," Vol XX, No 1 (January 1889), p. 2. Works number was 1431 in September 1888.
This unusual tank was apparently the only locomotive to actually reach the metals of the C & LM before it folded. The other two--both 4-4-2Ts--supplied by Brooks were repossessed.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | Mississippi |
| Locobase ID | 9549 |
| Railroad | Chattanooga & Lookout Mountain |
| Country | USA |
| Whyte | 2-6-4T |
| Number in Class | 1 |
| Road Numbers | 1 |
| Gauge | Std |
| Number Built | 1 |
| Builder | Brooks |
| Year | 1888 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 10 / 3.05 |
| Engine Wheelbase (ft / m) | 30 / 9.14 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.33 |
| Overall Wheelbase (engine & tender) (ft / m) | 30 / 9.14 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 70,000 / 31,752 |
| Engine Weight (lbs / kg) | 112,000 / 50,802 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | 112,000 |
| Tender Water Capacity (gals / ML) | 2000 / 7.58 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 39 / 19.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 48 / 1219 |
| Boiler Pressure (psi / kPa) | 140 / 1100 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 16" x 24" / 406x610 |
| Tractive Effort (lbs / kg) | 15,232 / 6909.13 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.60 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 186 - 2" / 51 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 9 / 2.74 |
| Firebox Area (sq ft / m2) | 97 / 9.01 |
| Grate Area (sq ft / m2) | 18.75 / 1.74 |
| Evaporative Heating Surface (sq ft / m2) | 967 / 89.87 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 967 / 89.87 |
| Evaporative Heating Surface/Cylinder Volume | 172.99 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2625 |
| Same as above plus superheater percentage | 2625 |
| Same as above but substitute firebox area for grate area | 13,580 |
| Power L1 | 2909 |
| Power MT | 274.85 |