Background of three-axle cars In the 1920s, the concept of three-axle (in the terminology of six-wheelers at that time) all-terrain vehicles with a wheel formula of 6 ×became popular in the world automobile industry 4. In the USSR, attention was paid to all-terrain vehicles (primarily for the needs of the red army), so initially began to purchase them on import. For example, popular French medium — sized cargo-passenger Renault MH cars were purchased for operation in Central Asia, and English heavy 7-ton Moreland TX6 trucks were purchased for the red army. On the basis of the latter in 1931, the d-9 heavy armored car was even created. At the end of 1930, a batch of 1000 three-axle (6 × 4) trucks "Timken Company" Ford—Timken with a load capacity of 1.5-2.5 tons was purchased in the United States, produced on the basis of a standard two-axle (4 × 2) Ford AA. By the way, in America, this model did not receive much recognition, but in the USSR it became the ancestor of all the "three axes". In 1931, the Assembly of three-axle "Ford-Timken" from American kits was deployed at the First automobile Assembly plant. On the basis of "Ford-Timken" already in 1931 were developed and in 1931-1934 mass-produced armored cars of the middle class D-13, BAI and BA-3, as well as experimental floating auto-railway armored cars BAD-1 and BAD-2. [2] History of creation and production of GAZ-AAA In 1932, the Ford AA chassis in NATI developed its own original three-axis version of the semi-trailer with worm main gears of the axles and a demultiplier. In the future, the design of GAZ-AAA was brought to the design Bureau of GAZ special vehicles under the leadership of Vitaly Grachev. Serial production of GAZ-AAA was mastered in 1934 and continued until July 1943, when it was curtailed due to the large destruction of Gas by Luftwaffe bomber aircraft. 37,373 GAZ-AAA trucks were produced, including 3331 BA-6/BA-10 armored vehicles and 194 GAZ-05-193 buses. One preserved GAZ-AAA is located in th