Piraeus, Athens & Peloponnese 2-4-0 Locomotives in Greece


Class Details by Steve Llanso of Sweat House Media

Class A1/B11 - 101 (Locobase 1522)

Data from A E Durrant, Locomotives of Eastern Europe (New York: Augustus M Kelley, Publishers, 1966), pp. 57, 150. Works numbers were 1415-1418 in 1883, 1419-1421 in 1884.

Durrant wrote that these little tanks were obtained for "train services proper" (as opposed to tram power or construction engines). Their frames lay inside the drivers, but the cylinders drove directly from outside mounts.


Class B151 (Locobase 1523)

Data from A E Durrant, The Steam Locomotives of Eastern Europe (Newton Abbot, Devonshire: David & Charles, 1966), p. 58, 60 and class info from [link], edited by Nick Sharounis and John Zartaloodes. Works numbers were 11132-11136 in 1912.

These were later renumbered Bs151-155 when the SPAP was absorbed by the SEK.

In what appears to be very small engines, Henschel managed to install superheaters and fit piston valves to handle the hotter steam Their acquisition was part of a update plan that proved satisfactory enough to render any new purchases unnecessary until 1925.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassA1/B11 - 101B151
Locobase ID1522 1523
RailroadPiraeus, Athens & Peloponnese (SPAP)Piraeus, Athens & Peloponnese (SPAP)
CountryGreeceGreece
Whyte2-4-0T2-4-0T
Number in Class85
Road Numbers101-107B151-B155
GaugeMetreMetre
Number Built85
BuilderKraussHenschel & Sohn
Year18831912
Valve GearHeusinger
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)46,144 / 20,93142,560 / 19,305
Engine Weight (lbs / kg)60,032 / 27,23062,720 / 28,449
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)60,032 / 27,23062,720 / 28,449
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)38 / 1935 / 17.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)47.20 / 120043.70 / 1110
Boiler Pressure (psi / kPa)142 / 980156 / 1080
High Pressure Cylinders (dia x stroke) (in / mm)13.2" x 19.7" / 335x50012.6" x 19.7" / 320x500
Tractive Effort (lbs / kg)8778 / 3981.649490 / 4304.60
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.26 4.48
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)10.30 / 0.9611.70 / 1.09
Evaporative Heating Surface (sq ft / m2)595 / 55.30550 / 51.12
Superheating Surface (sq ft / m2)147 / 13.66
Combined Heating Surface (sq ft / m2)595 / 55.30697 / 64.78
Evaporative Heating Surface/Cylinder Volume190.69193.45
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation14631825
Same as above plus superheater percentage14632208
Same as above but substitute firebox area for grate area
Power L1
Power MT

All material Copyright © SteamLocomotive.com
Wes Barris