ivan iosifovich drong, the expression on his face.k his head disapprovingly and began to make corrections and recalculate. finally, he paused for a long time on the columns of numbers, and the verdict was announced. 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. after all, there is something interesting coming up in your work. and the bold decision of the chief designer, first of all, we will cut out the tracks. the tractor must be wheeled and must have rubber tires. move, have a wide range of speeds, and most importantly - dock not only with trailers, but with other implements. the painstaking work began for the design bureau-plant. work to bring the model, as they say, to mind. the chief designer began walking around ministerial offices in moscow. and finally, in may 1948, from the ussr ministry of agriculture, the plant received a draft of technical requirements for