The order, method of calculation and construction of traction characteristics of the tracked car without power selection on the drive of auxiliary mechanisms are considered, some reference data for independent construction of traction characteristics are given. It has an interactive table of contents in the form of bookmarks. Recommended for students of all forms of training, studying theoretical courses: "Tight mechanics of construction and road machines", "Construction and operation of special autotractor equipment" (specialties: 23.) 05. 01 "Land transport and technological means", 23. 03. 02 "Land transport and technological complexes", 23. 03. 03 "Operation of transport-technological machines and complexes"), as well as during the course and control work on these courses . Can also be used by undergraduate and graduate students. When performing coursework and control work, use GOST R 2. 1052019