Series consist of three types - 81-765 (head motor car), 81-766 (intermediate motor car) and 81-767 (intermediate non-motor car). The series is being used
trains are classified as 81-765.B/766.B and operate with only motor and head cars, no trailers, in order to increase traction. The second train was shipped
Electric 560 hp (420 kW) diesel engine, with electric transmission to two tractionmotors mounted on the rear bogie. The seating capacity of the power cars was
head car (model 62-4497) Ivolga 2.0, head car (model 62-4497) Ivolga 1.0, motor car (model 62-4498) Ivolga 1.0, trailer car (model 62-4499) Driver cabin
complexity and mass. Electric motors do not suffer from this tradeoff, instead trading their high torque for traction at low speed. The power advantage