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 Uplands (
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. The
Bundesbahn stationed most of its 86's in
Nuremberg for the
Franconian branch lines and the marshalling yards there. The locomotive shed at
Hof, Germany, was also renowned Class 86 territory. Short, semi-fast trains were also regularly hauled by the Class 86. The DB retired its last one in 1974. In the GDR railways the 86's were mainly stationed at Aue
engine shed (with over 50 engines) for the surrounding
Ore Mountain routes. Some DR engines stationed at
Heringsdorf shed on the island of
Usedom were even given
smoke deflectors. One well-known service was a fast-stopping train with 7 Bghw coaches, but light express trains were also on their schedule in the Central Uplands. The Class 86's last (official) year in service in the DR was 1976, but several engines continued to run on into the 1980s. Since its inauguration in 1928, no. 86 001/86 1001 was under steam almost every day, but in its latter years was often just used as a heating engine. Its last duties were on the stub line from
Schlettau to
Crottendorf, where it ended its steam services in 1988. Together with 86 501 this loco was once again taken into scheduled service for a week in 1989 to celebrate the centenary of the route. With a service age of 60 years, it became the longest serving of all the standard locomotives to be placed in scheduled service by a national railway. Since 1999, no. 86 001 has been mothballed. No. 86 1056 met a tragic end in 1989 when she was the last victim of the GDR's scrapping madness and was converted into a mobile steam dispenser. Its driving gear and cylinders went into the furnace. ==Preserved locomotives==