Minho e Douro Articulated Locomotives in Portugal
Class Details by Steve Llanso of Sweat House Media
Class E 164 (Locobase 6395)
Data from [
], the website of the Swiss rail preservation group La Traction.
According to La Traction, these Mallets came to the M e D over a three-year period. Operational experience showed them to be overweight when compared with other metre-gauge. Still they remained in service for decades, receiving their final set of numbers when the national railway (CP) was formed in 1947.
La Traction's example was shut down in Portugal in 1984. Google's uncertain translation is ambiguous, but E 164 was transferred in some way from Portugal to Delemont where it was on display for years. Restoring it to running condition took years and a fortuitous grant from the Federation d' impulsion economique regionale (FIER). Shops in Meiningen put the E 169's rear engine set under a new steel boiler and installed a compressed-air brake system. Even then, light-off showed that the injectors wouldn't work above a 10-bar pressure and the brake system leaked. Some of the bearings failed as well. Eventually all was worked through and the locomotive entered regular museum service in 2000.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | E 164 |
| Locobase ID | 6395 |
| Railroad | Minho e Douro |
| Country | Portugal |
| Whyte | 0-4-4-0T |
| Number in Class | 10 |
| Road Numbers | E 161-170 |
| Gauge | Metre |
| Number Built | 10 |
| Builder | Henschel & Sohn |
| Year | 1905 |
| Valve Gear | Heusinger |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | |
| Engine Wheelbase (ft / m) | 17.06 / 5.20 |
| Ratio of driving wheelbase to overall engine wheelbase | |
| Overall Wheelbase (engine & tender) (ft / m) | 17.06 / 5.20 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
| Weight on Drivers (lbs / kg) | 92,594 / 42,000 |
| Engine Weight (lbs / kg) | 92,594 / 42,000 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 924 / 3.50 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.40 / 1 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 39 / 19.50 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 43.30 / 1100 |
| Boiler Pressure (psi / kPa) | 203.10 / 1400 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 12.6" x 21.65" / 320x550 |
| Low Pressure Cylinders (dia x stroke) (in / mm) | 18.9" x 21.65" / 480x550 |
| Tractive Effort (lbs / kg) | 18,974 / 8606.47 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 4.88 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 11.78 / 3.59 |
| Firebox Area (sq ft / m2) | |
| Grate Area (sq ft / m2) | 14.31 / 1.33 |
| Evaporative Heating Surface (sq ft / m2) | 887 / 82.40 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 887 / 82.40 |
| Evaporative Heating Surface/Cylinder Volume | 283.89 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 2906 |
| Same as above plus superheater percentage | 2906 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |