HDZ 2-4-2 Locomotives in Yugoslavia


Class Details by Steve Llanso of Sweat House Media

Class 16 (Locobase 21095)

Data from Skice I Glavni Podatci Lokomotiva (Zagreb: Zelieznicko Transporno Poduzece, 1955), p. 11; and A[nthony] E[dward] Durrant, The Steam Locomotives of Eastern Europe (Newton Abbot, Devonshire: David & Charles, 1966), pp. 130. Works numbers were 1-14 in 1938, 15-17 in 1940, and 18-22 in 1941.

Locobase 1539 describes the original MAV designed and built Class 22 local passenger tank locomotives. Budapest delivered thirteen--MAV works numbers 5123-5135-- in 1933-1934 as the Serbian-Herzogivina railways 414 class.

The JZ's 1955 diagram shows the 22 locomotives built in Yugoslavia in 1938-1941. They were the first locomotives to be built in the South Slav confederation. Most operated on the Croatian HDZ before being incorporated into the JDZ after World War II.

Two significant changes were the slight reduction in external tube diameters and tubes and flues lengthened by 200 mm (7.9") each. Yugoslav designers replaced the MAV's boiler toppings (three separate domes for steam and sanders) with a merged sander under a single casing between the safety valve stand in front of the cab and the steam dome just behind the chimney. The last five used Lentz poppet valve gear in place of the Heusinger constant-lead setup. Speed limit rose to 80 kph (50 mph).

Principal Dimensions by Steve Llanso of Middle Run Media
Class16
Locobase ID21095
RailroadHDZ (JDZ)
CountryYugoslavia
Whyte2-4-2T
Number in Class22
Road Numbers16.014-16.035
GaugeStd
Number Built22
BuilderSlavonski Brod
Year1938
Valve GearHeusinger
Locomotive Length and Weight
Driver Wheelbase (ft / m) 7.87 / 2.40
Engine Wheelbase (ft / m)21 / 6.40
Ratio of driving wheelbase to overall engine wheelbase 0.37
Overall Wheelbase (engine & tender) (ft / m)21 / 6.40
Axle Loading (Maximum Weight per Axle) (lbs / kg)22,046 / 10,000
Weight on Drivers (lbs / kg)44,092 / 20,000
Engine Weight (lbs / kg)84,878 / 38,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)1056 / 4
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 1.90 / 1.75
Minimum weight of rail (calculated) (lb/yd / kg/m)37 / 18.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1220
Boiler Pressure (psi / kPa)203.10 / 1400
High Pressure Cylinders (dia x stroke) (in / mm)13.98" x 18.11" / 355x460
Tractive Effort (lbs / kg)12,730 / 5774.24
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.46
Heating Ability
Tubes (number - dia) (in / mm)58 - 1.752" / 44.5
Flues (number - dia) (in / mm)13 - 2.756" / 70
Flue/Tube length (ft / m)10.50 / 3.20
Firebox Area (sq ft / m2)68.89 / 6.40
Grate Area (sq ft / m2)15.50 / 1.44
Evaporative Heating Surface (sq ft / m2)533 / 49.50
Superheating Surface (sq ft / m2)288 / 26.80
Combined Heating Surface (sq ft / m2)821 / 76.30
Evaporative Heating Surface/Cylinder Volume165.66
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3148
Same as above plus superheater percentage4250
Same as above but substitute firebox area for grate area18,889
Power L117,521
Power MT1752.12

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