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 Middle Run Media | |
|---|---|
| Class | D111 |
| Locobase ID | 1530 |
| Railroad | Piraeus, Athens & Peloponnese (SPAP) |
| Country | Greece |
| Whyte | 2-8-2 |
| Number in Class | 10 |
| Road Numbers | 111-120/7111-7120 |
| Gauge | Metre |
| Number Built | 10 |
| Builder | Breda |
| Year | 1952 |
| Valve Gear | Heusinger |
| 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 / 1280 |
| 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 Volume | 193.93 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 5698 |
| Same as above plus superheater percentage | 6895 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |