The VM (; ) was an experimental

Soviet The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, ...

diesel-electric locomotive named after

Vyacheslav Molotov Vyacheslav Mikhaylovich Molotov. ; (;. 9 March Old_Style_and_New_Style_dates">O._S._25_February.html" ;"title="Old_Style_and_New_Style_dates.html" ;"title="nowiki/>Old Style and New Style dates">O. S. 25 February">Old_Style_and_New_Style_dat ...

( Russian: Вячеслав Молотов; ). It was a two-unit machine of 2-Do-1+1-Do-2 wheel arrangement and only one pair of locomotives was built. page 69

Powertrain

The two

diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-call ...

s were of the six cylinder, four stroke type. They were Soviet-built and based on the MAN engine used in the Soviet E el-5 locomotive. The MAN engine was rated at at 450 rpm but the Soviet engines were de-rated to at 400 rpm. The

traction motor A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric vehicle, electric or hydrogen vehicles, elevators or electric multiple unit. Traction motors are used in electrically powered rail vehicles (ele ...

s were similar to those used in the Soviet E el-12 locomotive but the rating of each motor was increased from to .

References

Railway locomotives introduced in 1934 VM 5 ft gauge locomotives {{Russia-rail-transport-stub