Data from "1. Type Program - "Metallurgical Locomotives" [Huttenlokomotiven] from the Industrial lokomotiven menu on the dampflokomotivarchive.de website at [], last accessed 22 May 2025. See also [
], accessed 18 June 2006, a website of collectible pictures and cigarette cards. Works numbers were 6458 in 1912, 6537 and 6832 in 1913, 7978 in 1917, and 9316-9317 in 1921.
[Note: Locobase won't reproduced the customer details in this entry as damplokomoitvarchiv.de's well-organized layout allows a user to drill down to individual engines quite easily.]
As the first paragraph shows, Locobase first encountered this design in 2006, but had only limited information about its origins. The cigraette card showed the Tripoli, first of the series.
dampflokomotivarchiv describes this as one of the five industrial tank locomotives produced to standard designs. Very short tanks, plate frame, long dome containing both steam dome and sandbox, and small curve radius indicate its intended roles. Derived from the smaller and less powerful L 3900 variant, the L 3950 found less success as Hanomag sold only six of this heavier version.
Most served several customers and remained in service until well after the end of World War II.
Principal Dimensions by Steve Llanso of Middle Run Media | |
---|---|
Class | L 3950 |
Locobase ID | 7601 |
Railroad | industrial |
Country | Germany |
Whyte | 0-6-0T |
Number in Class | 6 |
Road Numbers | see note in comments |
Gauge | 1000 |
Number Built | 6 |
Builder | Hanomag |
Year | 1911 |
Valve Gear | Heusinger |
Locomotive Length and Weight | |
Driver Wheelbase (ft / m) | 8.20 / 2.50 |
Engine Wheelbase (ft / m) | 8.20 / 2.50 |
Ratio of driving wheelbase to overall engine wheelbase | 1 |
Overall Wheelbase (engine & tender) (ft / m) | 8.20 / 2.50 |
Axle Loading (Maximum Weight per Axle) (lbs / kg) | |
Weight on Drivers (lbs / kg) | 97,003 / 44,000 |
Engine Weight (lbs / kg) | 97,003 / 44,000 |
Tender Loaded Weight (lbs / kg) | |
Total Engine and Tender Weight (lbs / kg) | |
Tender Water Capacity (gals / ML) | 1109 / 4.20 |
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) | 1.30 / 1.20 |
Minimum weight of rail (calculated) (lb/yd / kg/m) | 54 / 27 |
Geometry Relating to Tractive Effort | |
Driver Diameter (in / mm) | 39.40 / 1000 |
Boiler Pressure (psi / kPa) | 205.70 / 1400 |
High Pressure Cylinders (dia x stroke) (in / mm) | 17.72" x 19.69" / 450x500 |
Tractive Effort (lbs / kg) | 27,437 / 12445.23 |
Factor of Adhesion (Weight on Drivers/Tractive Effort) | 3.54 |
Heating Ability | |
Tubes (number - dia) (in / mm) | 260 - 1.811" / 46 |
Flues (number - dia) (in / mm) | |
Flue/Tube length (ft / m) | 10.66 / 3.25 |
Firebox Area (sq ft / m2) | 96.88 / 9 |
Grate Area (sq ft / m2) | 18.94 / 1.76 |
Evaporative Heating Surface (sq ft / m2) | 1410 / 131 |
Superheating Surface (sq ft / m2) | |
Combined Heating Surface (sq ft / m2) | 1410 / 131 |
Evaporative Heating Surface/Cylinder Volume | 250.88 |
Computations Relating to Power Output (More Information) | |
Robert LeMassena's Power Computation | 3896 |
Same as above plus superheater percentage | 3896 |
Same as above but substitute firebox area for grate area | 19,928 |
Power L1 | 4553 |
Power MT | 310.43 |