Piraeus, Athens & Peloponnese 2-8-2 Locomotives in Greece

Class Details by Steve Llanso of Sweat House Media

Class D111 (Locobase 1530)

Data from A E Durrant, "Steam Locomotives of Eastern Europe"Works numbers were 2591-2600 in 1951.

Built late in the steam era, these Mikados offered relatively large heating surface area, capacious cylinders, and adhesion weight for a metre-gauge 2-8-2. A "bread-loaf" casing on the boiler top enclosed both the steam dome and the sandbox. Eight thin lines of piping ran down the sides to all of the drivers.

An unusual trailing truck assembly put the wheels inside a thick frame. which may have allowed more than usual lateral movement.

Together with the widely distributed "MacArthur" Mikados and Z-class 2-6-0 tanks, the Deltas formed the backbone of SPAP's motive power in the mid-1960s.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID1530
RailroadPiraeus, Athens & Peloponnese (SPAP)
Number in Class10
Road Numbers111-120/7111-7120
Number Built10
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)89,600 / 40,642
Engine Weight (lbs / kg)132,160 / 59,947
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)47.20 / 1200
Boiler Pressure (psi / kPa)185 / 12.80
High Pressure Cylinders (dia x stroke) (in / mm)18.5" x 24" / 470x610
Tractive Effort (lbs / kg)27,365 / 12412.57
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.27
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)30.80 / 2.86
Evaporative Heating Surface (sq ft / m2)1448 / 134.57
Superheating Surface (sq ft / m2)377 / 35.04
Combined Heating Surface (sq ft / m2)1825 / 169.61
Evaporative Heating Surface/Cylinder Volume193.93
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation5698
Same as above plus superheater percentage6895
Same as above but substitute firebox area for grate area
Power L1
Power MT

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