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Specifications
Specifications
Configuration:;
• UIC	2-Do-1+1-Do-2
Loco weight	2 x 123 tonnes (121 long tons; 136 short tons)
Prime mover	Two Soviet-built diesel engines; MAN design
RPM range	Max. 400 rpm
Transmission	Diesel-electric; 8 x 207 hp (154 kW) traction motors

Type and origin
Type and origin
Power type	Diesel-electric
Build date	1934

VM
VM
	VM or BM class diesel-electric locomotive
Power type
Type and origin
Power type	Diesel-electric
Build date	1934
Configuration:;
Specifications
Configuration:;
• UIC	2-Do-1+1-Do-2
Loco weight	2 x 123 tonnes (121 long tons; 136 short tons)
Prime mover	Two Soviet-built diesel engines; MAN design
RPM range	Max. 400 rpm
Transmission	Diesel-electric; 8 x 207 hp (154 kW) traction motors
Power output
Performance figures
Power output	2 x 1,050 hp (780 kW) (diesel)
Number in class
Career
Number in class	1 pair

The VM (Russian: ВМ; Ukrainian: ВМ) was an experimental Soviet diesel-electric locomotive named after Vyacheslav Molotov (Russian: Вячеслав Молотов; Ukrainian: В'ячеслав Молотов). It was a two-unit machine of 2-Do-1+1-Do-2 wheel arrangement and only one pair of locomotives was built.^[1]

Powertrain

The two diesel engines 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 1,200 hp (890 kW) at 450 rpm but the Soviet engines were de-rated to 1,050 hp (780 kW) at 400 rpm. The traction motors were similar to those used in the Soviet E el-12 locomotive but the rating of each motor was increased from 190 hp (140 kW) to 207 hp (154 kW).