they caught every move of the chief designer ivan iosifovich drong, the expression on his face. intently examined the drawings they presented, their first developments. he stopped for a long time. finally, the verdict came. i am surprised at your timidity. is it worth fixing yesterday? let's think about tomorrow, even the day after tomorrow. and he immediately cheered up the drooping youth by laying out the drawings in front of them. something interesting is planned for the work and a bold decision of the chief designer will be cut out first the tractor must have caterpillar tracks. requirements for the design of a new tractor, a universal wheeled one with a 37 horsepower diesel engine. its own development, its own assembly. the republic laid the foundations for creating a whole line of its own machines, its own school of tractor building. the model was named mtz-1. a total of seven prototypes were produced in 1949. factory tests, revision tests again. prototype. became the basis for the creation of mtz-2, which was launched into mass production. crawler tractor kd-35, skidder k