Soviet locomotive class P36

Soviet locomotive class P36
P36-0251 - the last steam locomotive built at Kolomna Works
Type and origin
Power typeSteam
BuilderKolomna Locomotive Works
Build date1952, 1953–1956
Total produced251
Specifications
Configuration:
  Whyte4-8-4
Gauge1,524 mm (5 ft)
Leading dia.900 mm (35.43 in)
Driver dia.1,850 mm (72.83 in)
Trailing dia.1,050 mm (41.34 in)
Length16.661 m (54 ft 8 in) (w/o tender)
Firebox:
  Grate area6.75 m2 (72.7 sq ft)
Boiler pressure15 kgf/cm2 (1.47 MPa; 213 psi)
Superheater:
  TypeDvuhoborotny
  Heating area131.7 m2 (1,418 sq ft) (No. 1), 149.2 m2 (1,606 sq ft)
CylindersTwo, outside
Cylinder size575 mm × 800 mm (22.64 in × 31.50 in)
bore x stroke
Performance figures
Maximum speed125 km/h (78 mph)
Career
OperatorsRussian Railways
ClassП36
NumbersП36-0001 - П36-0251
LocaleRussia
Retired1963-1987
Preserved26
Scrapped1965-1991

The Soviet locomotive class P36 (Russian: П36) was a Soviet mainline passenger steam locomotive type. Between 1950 and 1956, 251 locomotives were built. The locomotives were nicknamed "Generals" because of the red stripe down the side. The P36 had the same power as a class IS locomotive but the axle loading of 18 tons allowed its use on the vast majority of Russian railway lines, replacing class Su 2-6-2s and significantly increasing the weight of passenger trains. The P36 was the last type of mainline steam locomotive built in the Russian SFSR and the last one built, P36-0251, was the last steam locomotive produced by Kolomna Works, Russian SFSR. Though sometimes described as the "Victory" type locomotive, that nick-name actually belongs to the class L 2-10-0 built between 1945 and 1947.