Insular Lumber Company Articulated Locomotives in Philippines
Class Details by Steve Llanso of Sweat House Media
Class 7 (Locobase 15284)
Data from DeGolyer, Vol 72, pp. 258. See also some notes by James Hefner posted on 28 June 2005 on the Narrow Gauge Railroad Discussion Forum at [
],61094,61214. Works number was 58239 in February 1925.
Principal Dimensions by Steve Llanso of Sweat House Media | |
|---|---|
| Class | 7 |
| Locobase ID | 15284 |
| Railroad | Insular Lumber Company |
| Country | Philippines |
| Whyte | 0-6-6-0 |
| Number in Class | 1 |
| Road Numbers | 7 |
| Gauge | 3'6" |
| Number Built | 1 |
| Builder | Baldwin |
| Year | 1925 |
| Valve Gear | Walschaert |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8.50 / 2.59 |
| Engine Wheelbase (ft / m) | 24.75 / 7.54 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.34 |
| Overall Wheelbase (engine & tender) (ft / m) | 24.75 / 7.54 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 132,000 / 59,874 |
| Engine Weight (lbs / kg) | 132,000 / 59,874 |
| Tender Loaded Weight (lbs / kg) | 54,000 / 24,494 |
| Total Engine and Tender Weight (lbs / kg) | 186,000 / 84,368 |
| Tender Water Capacity (gals / ML) | 2500 / 9.47 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 37 / 18.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 44 / 1118 |
| Boiler Pressure (psi / kPa) | 200 / 13.80 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 24" / 381x610 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 23" x 24" / 584x610 |
| Tractive Effort (lbs / kg) | 29,276 / 13279.39 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.51 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 84 - 2" / 51 |
| Flues (number - dia) (in / mm) | 13 - 5.375" / 137 |
| Flue/Tube length (ft / m) | 17 / 5.18 |
| Firebox Area (sq ft / m2) | 116 / 10.78 |
| Grate Area (sq ft / m2) | 19.50 / 1.81 |
| Evaporative Heating Surface (sq ft / m2) | 1169 / 108.60 |
| Superheating Surface (sq ft / m2) | 248 / 23.04 |
| Combined Heating Surface (sq ft / m2) | 1417 / 131.64 |
| Evaporative Heating Surface/Cylinder Volume | 238.15 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3900 |
| Same as above plus superheater percentage | 4602 |
| Same as above but substitute firebox area for grate area | 27,376 |
| Power L1 | 5059 |
| Power MT | 506.96 |