Data from A E Durrant, Locomotives of Eastern Europe (New York: Augustus M Kelley, Publishers, 1966), pp. 57, 150. Works numbers were 1425-1429 in 1885 and 1859-1886 in 1887.
Durrant commented that these seven engines were the first of a wheel arrangement "which was to prove extremely popular on the system."
Data from diagram No 88, Societe Alsacienne de Constructions Mecaniques from locomotive book supplied by Dany Machi up at [] as
Diagrammes des machines SACM construites a GRAFENSTADEN (October 2007).
This was the largest single class of Mogul tanks on the SPAP. Its complement of seventeen locomotives was nearly equal to the rest of the 2-6-0 tank stud on the railway. The design had a long low profile with a large dome just behind the stack and a smaller sand dome over the second coupled axle
Data from A E Durrant, Locomotives of Eastern Europe (New York: Augustus M Kelley, Publishers, 1966), pp. 57, 61 Works numbers were 6467-6470 in 1911, 8375-8377 in 1926
Although this class continued an SPAP preference for Mogul tanks, the first four delivered in 1911 introduced superheating to SPAP motive power. Limited as axle loadings were on the SPAP, fitting a larger boiler forced a reduction in water tank capacity.
Principal Dimensions by Steve Llanso of Middle Run Media | |||
---|---|---|---|
Class | D201, 251 | Z501 | Zc, D XXVII i |
Locobase ID | 1524 | 1525 | 1526 |
Railroad | Piraeus, Athens & Peloponnese (SPAP) | Piraeus, Athens & Peloponnese (SPAP) | Piraeus, Athens & Peloponnese (SPAP) |
Country | Greece | Greece | Greece |
Whyte | 2-6-0T | 2-6-0T | 2-6-0T |
Number in Class | 7 | 17 | 26 |
Road Numbers | 201-205, 251-252 | 501-517 | 530-533/Z534, 531-533, Z540-Z542 |
Gauge | Metre | Metre | Metre |
Number Built | 7 | 17 | 26 |
Builder | Krauss | SACM | Krauss |
Year | 1885 | 1890 | 1911 |
Valve Gear | Stephenson | Walschaert | |
Locomotive Length and Weight | |||
Driver Wheelbase (ft / m) | 8.46 / 2.58 | ||
Engine Wheelbase (ft / m) | 15.16 / 4.62 | ||
Ratio of driving wheelbase to overall engine wheelbase | 0.56 | ||
Overall Wheelbase (engine & tender) (ft / m) | 15.16 / 4.62 | ||
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |||
Weight on Drivers (lbs / kg) | 60,480 / 27,433 | 61,729 / 28,000 | 67,200 / 30,481 |
Engine Weight (lbs / kg) | 79,520 / 36,070 | 75,839 / 34,400 | 83,328 / 37,797 |
Tender Loaded Weight (lbs / kg) | |||
Total Engine and Tender Weight (lbs / kg) | |||
Tender Water Capacity (gals / ML) | 1320 / 5 | ||
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.10 / 1 | ||
Minimum weight of rail (calculated) (lb/yd / kg/m) | 34 / 17 | 34 / 17 | 37 / 18.50 |
Geometry Relating to Tractive Effort | |||
Driver Diameter (in / mm) | 48 / 1219 | 47.60 / 1210 | 47.20 / 1200 |
Boiler Pressure (psi / kPa) | 142 / 980 | 142.10 / 980 | 174 / 1200 |
High Pressure Cylinders (dia x stroke) (in / mm) | 15" x 20.9" / 381x531 | 14.96" x 19.69" / 380x500 (1) | 16.5" x 19.7" / 419x500 |
Low Pressure Cylinders (dia x stroke) (in / mm) | 22.44" x 19.69" / 570x500 (1) | ||
Tractive Effort (lbs / kg) | 11,825 / 5363.74 | 7741 / 3511.26 | 16,806 / 7623.08 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 5.11 | 7.97 | 4.00 |
Heating Ability | |||
Tubes (number - dia) (in / mm) | 134 - 1.575" / 40 | ||
Flues (number - dia) (in / mm) | |||
Flue/Tube length (ft / m) | 12.14 / 3.70 | ||
Firebox Area (sq ft / m2) | 53.28 / 4.95 | ||
Grate Area (sq ft / m2) | 13.50 / 1.25 | 10.01 / 0.93 | 12.60 / 1.17 |
Evaporative Heating Surface (sq ft / m2) | 790 / 73.42 | 724 / 67.25 | 604 / 56.13 |
Superheating Surface (sq ft / m2) | 178 / 16.54 | ||
Combined Heating Surface (sq ft / m2) | 790 / 73.42 | 724 / 67.25 | 782 / 72.67 |
Evaporative Heating Surface/Cylinder Volume | 184.81 | 361.48 | 123.89 |
Computations Relating to Power Output (More Information) | |||
Robert LeMassena's Power Computation | 1917 | 1422 | 2192 |
Same as above plus superheater percentage | 1917 | 1422 | 2697 |
Same as above but substitute firebox area for grate area | 7571 | ||
Power L1 | 2478 | ||
Power MT | 265.50 |