FC Central Paraguay 2-8-0 Locomotives in Paraguay
Class Details by Steve Llanso of Sweat House Media
Class P (Locobase 11946)
Data from image 521b of FEPASA website ([
], last accessed 27 December 2010). Works numbers began with 19670.
North British delivered 5 Consolidations with saturated boilers and 10 with superheaters. All had Belpaire fireboxes and all had very similar dimensions otherwise.
Class Q (Locobase 11945)
Data from image 326b of FEPASA website ([], last accessed 27 December 2010).
North British delivered 5 Consolidations with saturated boilers and 10 with superheaters. Unusually for British-designed engines, these 2-8-0s had a substantial amount of heating surface devoted to superheat.
All had Belpaire fireboxes and all had very similar dimensions otherwise. The first 5 arrived in 1914, the other 5 in 1921.
| Principal Dimensions by Steve Llanso of Middle Run Media | ||
|---|---|---|
| Class | P | Q |
| Locobase ID | 11946 | 11945 |
| Railroad | FC Central Paraguay (FCCP) | FC Central Paraguay (FCCP) |
| Country | Paraguay | Paraguay |
| Whyte | 2-8-0 | 2-8-0 |
| Number in Class | 5 | 10 |
| Road Numbers | 521-525 | 326-335 |
| Gauge | Std | Std |
| Number Built | 5 | 10 |
| Builder | North British | North British |
| Year | 1912 | 1914 |
| Valve Gear | Stephenson | Walschaert |
| Locomotive Length and Weight | ||
| Driver Wheelbase (ft / m) | 13.75 / 4.19 | 13.75 / 4.19 |
| Engine Wheelbase (ft / m) | 21.26 / 6.48 | 21.26 / 6.48 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.65 | 0.65 |
| Overall Wheelbase (engine & tender) (ft / m) | 46.71 / 14.24 | 47.01 / 14.33 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | ||
| Weight on Drivers (lbs / kg) | 101,915 / 46,228 | 106,329 / 48,230 |
| Engine Weight (lbs / kg) | 122,083 / 55,376 | 127,114 / 57,658 |
| Tender Loaded Weight (lbs / kg) | 98,547 / 44,700 | 99,098 / 44,950 |
| Total Engine and Tender Weight (lbs / kg) | 220,630 / 100,076 | 226,212 / 102,608 |
| Tender Water Capacity (gals / ML) | 4855 / 18.39 | 4776 / 18.09 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 8.40 / 8 | 8.40 / 8 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 42 / 21 | 44 / 22 |
| Geometry Relating to Tractive Effort | ||
| Driver Diameter (in / mm) | 50 / 1270 | 50 / 1270 |
| Boiler Pressure (psi / kPa) | 175 / 1190 | 169.70 / 1170 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 18" x 26" / 457x660 | 19.02" x 25.98" / 483x660 |
| Tractive Effort (lbs / kg) | 25,061 / 11367.49 | 27,114 / 12298.72 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.07 | 3.92 |
| Heating Ability | ||
| Tubes (number - dia) (in / mm) | 189 - 2" / 51 | 107 - 2.008" / 51 |
| Flues (number - dia) (in / mm) | 18 - 5.236" / 133 | |
| Flue/Tube length (ft / m) | 12.34 / 3.76 | 12.34 / 3.76 |
| Firebox Area (sq ft / m2) | 120.08 / 11.16 | 120.51 / 11.20 |
| Grate Area (sq ft / m2) | 29.37 / 2.73 | 29.37 / 2.73 |
| Evaporative Heating Surface (sq ft / m2) | 1323 / 123 | 1112 / 103.35 |
| Superheating Surface (sq ft / m2) | 297 / 27.60 | |
| Combined Heating Surface (sq ft / m2) | 1323 / 123 | 1409 / 130.95 |
| Evaporative Heating Surface/Cylinder Volume | 172.77 | 130.16 |
| Computations Relating to Power Output (More Information) | ||
| Robert LeMassena's Power Computation | 5140 | 4984 |
| Same as above plus superheater percentage | 5140 | 6031 |
| Same as above but substitute firebox area for grate area | 21,014 | 24,745 |
| Power L1 | 3663 | 7263 |
| Power MT | 316.95 | 602.36 |