Data from "Tank Locomotive, Egyptian Delta Light Rys," The Locomotive Magazine, Volume XIV [14] (14 November 1908), p. 190; and E L Ahrons, "Locomotives of the Egyptian State Railways", Locomotive Magazine, Volume XXV [25]. (15 September 1919), pp. 157-160
Although this locomotive is said to have been supplied to the 750-mm portion of this extensive network, its dimensions suggest that it would have operated on the standard-gauge portion of this extensive network of light-railway lines opened in 1897. (Locobase's supposition was borne out by Ahrons's later report.) By 1907, the EDLR operated 573 miles.
Locobase notices the balanced wheelbase in which the leading and trailing axles are each 6 ft (1.82 m) apart from its nearest driven axle. The deep firebox lay between the two driven axles.
| Principal Dimensions by Steve Llanso of Middle Run Media | |
|---|---|
| Class | 12 |
| Locobase ID | 10673 |
| Railroad | Egyptian Delta Light Railway |
| Country | Egypt |
| Whyte | 2-4-2T |
| Number in Class | |
| Road Numbers | 12-13 |
| Gauge | Std |
| Number Built | 2 |
| Builder | WG Bagnall |
| Year | 1908 |
| Valve Gear | Stephenson |
| Locomotive Length and Weight | |
| Driver Wheelbase (ft / m) | 8 / 2.44 |
| Engine Wheelbase (ft / m) | 20 / 6.10 |
| Ratio of driving wheelbase to overall engine wheelbase | 0.40 |
| Overall Wheelbase (engine & tender) (ft / m) | 20 / 6.10 |
| Axle Loading (Maximum Weight per Axle) (lbs / kg) | 26,768 |
| Weight on Drivers (lbs / kg) | 52,304 / 23,725 |
| Engine Weight (lbs / kg) | 101,920 / 46,230 |
| Tender Loaded Weight (lbs / kg) | |
| Total Engine and Tender Weight (lbs / kg) | |
| Tender Water Capacity (gals / ML) | 1080 / 4.09 |
| Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 2.20 / 2 |
| Minimum weight of rail (calculated) (lb/yd / kg/m) | 44 / 22 |
| Geometry Relating to Tractive Effort | |
| Driver Diameter (in / mm) | 54 / 1372 |
| Boiler Pressure (psi / kPa) | 180 / 1240 |
| High Pressure Cylinders (dia x stroke) (in / mm) | 15.5" x 24" / 406x610 |
| Tractive Effort (lbs / kg) | 16,337 / 7410.35 |
| Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.20 |
| Heating Ability | |
| Tubes (number - dia) (in / mm) | 177 - 1.75" / 44 |
| Flues (number - dia) (in / mm) | |
| Flue/Tube length (ft / m) | 10.50 / 3.20 |
| Firebox Area (sq ft / m2) | 89.46 / 8.31 |
| Grate Area (sq ft / m2) | 17.10 / 1.59 |
| Evaporative Heating Surface (sq ft / m2) | 941 / 87.42 |
| Superheating Surface (sq ft / m2) | |
| Combined Heating Surface (sq ft / m2) | 941 / 87.42 |
| Evaporative Heating Surface/Cylinder Volume | 179.53 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3078 |
| Same as above plus superheater percentage | 3078 |
| Same as above but substitute firebox area for grate area | 16,103 |
| Power L1 | 4291 |
| Power MT | 361.73 |