DRG Class 86
| Class 86 | |
|---|---|
86 001 in Chemnitz-Hilbersdorf
|
|
| Number(s) | 86 001 – 86 591 86 606 – 86 627 86 698 – 86 816 86 835 – 86 875 86 966 Bentheimer Eisenbahn 41 (was 86 817) Eutin-Lübecker Eisenbahn 15 (3rd) [1942 to DR 86 1000] |
| Quantity | 776 |
| Manufacturer |
MG Karlsruhe Linke-Hofmann F. Schichau Friedr. Krupp AG Esslingen Borsig Henschel & Sohn BMAG Orenstein & Koppel Lokomotivfabrik Floridsdorf DWM Posen |
| Year(s) of manufacture | 1928–1943 |
| Retired | from 1945 |
| Wheel arrangement | 2-8-2 |
| Axle arrangement | 1'D1' |
| Axle arrangement | 1'D1' h2t |
| Type | Gt 46.15 |
| Track gauge | 1,435 mm (4 ft 8 1⁄2 in) |
| Length over buffers | 13,820 mm |
| Height | 4,165 mm |
| Minimum curve | 140 m |
| Empty weight | 70.0 t |
| Service weight | 88.5 Mp 868 kN |
| Adhesive weight | 60.6 Mp 594 kN |
| Axle load | 15.6 Mp 153 kN |
| Top speed | 70–80 km/h |
| Indicated Power | 1,030 PSi (758 kW) |
| Coupled wheel diameter | 1,400 mm |
| Leading wheel diameter | 850 mm |
| Trailing wheel diameter | 850 mm |
| Valve gear | outside Walschaerts valve gear |
| No. of cylinders | 2 |
| Cylinder bore | 570 mm |
| Piston stroke | 660 mm |
| Boiler length | 4,500 mm |
| Boiler Overpressure | 14 kp/cm² 1.4 MPa |
| No. of heating tubes | 110 |
| No. of smoke tubes | 26 |
| Heating tube length | 4,500 mm |
| Grate area | 2.39 m² |
| Radiative heating area | 10 m² |
| Tube heating area | 107.3 m² |
| Superheater area | 47.00 m² |
| Evaporative heating area | 117.937 m² |
| Water capacity | 9.0 m² |
| Fuel | 4.0 t |
| Brakes | Knorr single-chamber, compressed-air brake with auxiliary brake |
| Parking brake | Exter counterweight brake |
The DRG Class 86 was a standard (see Einheitsdampflokomotive) goods train tank locomotive with the Deutsche Reichsbahn-Gesellschaft. It was intended for duties on branch lines and was delivered by almost all the locomotive building firms working for the Reichsbahn. From 1942 it was built in a simplified version as a 'transitional war locomotive' (Übergangskriegslokomotive or ÜK). The most obvious changes were the omission of the second side windows in the cab and the solid disc carrying wheels.
Almost all German locomotive factories took part in building these engines, 775 examples being produced in the period from 1928 to 1943. Its area of operations was predominantly the routes in Germany's central mountains (Mittelgebirge); as a result the first 10 units were given a Riggenbach counter-pressure brake. Twenty locomotives were destroyed during the Second World War; lightly damaged engines were repaired. Of the original 775 units, 175 went to the GDR railways, 385 to the Deutsche Bundesbahn, 29 to the Austrian Federal Railways (ÖBB), 44 to the PKP in Poland as the Class TKt3, 73 to the SZD and 62 to the CSD (6 of which later went to the SZD and 86 043 in 1958 to the GDR). On the last-mentioned 62 engines 28 became the CSD Class 455.2. Only 2 engines are still unaccounted for (86 016 and 86 469). The ÖBB began to retire them as early as 1945, but the last did not retire until 1972. However the Austrian engines had some of the most spectacular duties, including working double-headed on heavy, empty, ore trains with a DRB Class 52.
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