A note on Tractor Technology
Fordson of 1920
Not much change to be the Fordzon-Putilovets, made till 1932
Or the McCormick-Deering 15-30 of 1921
aka SKhTZ-15/30, made at the Stalingrad Factory till 1941
Soviet tractors tended to be slower, and most were tracked, that couldn’t be used the same way as the newer wheeled Row Crop Tractors with the front wheels tilted close together, that was introduced by Oliver in 1930.
Rubber tires were introduced by B. F. Goodrich in 1931 and popularized by Firestone
14 percent of wheel tractors were sold on rubber in 1935, 31 percent in 1936, 43 percent in 1937, 95 percent in 1940
Nebraska Tractor Test No. 223, begun in May, 1934. This was the first official test of a rubber pneumatic tired tractor and with a Allis-Chalmers WC. Tests were made using the same tractor, first equipped with rubber tires and then with steel wheels. 5.62 horsepower hours per gallon of fuel was noted with steel wheels and then 8.18 on rubber tires. The average horsepower hours per gallon of fuel by all 46 wheel-tractors tested during the 1930 Nebraska Tractor Test of 5.59
Tracks gave better traction and less soil compaction than the earlier steel wheels, but pneumatic tires had far higher operating speeds and operator comfort, for nearly the same traction
Row Crop wheel setup allowed the tractor to both plow and cultivate, and the older wide front end became rare in the US for decades, till the size of tractors greatly increased in the late ‘60s.
The US tried row crop adaptations for crawlers, but were not successful
Speed was important as there were fewer trucks. Tractors were used for bringing the crops in where the US used trucks almost exclusively. Tracks made those trips even slower, as few had speeds higher than 5mph.
Most all Soviet tractors had lower horsepower ratings than US makes.
Electric start introduced in 1936 with the Minneapolis-Moline, and all Cleveland Tractor Company, Cletrac, had their whole line equipped with electric starters and lighting.
The last US advantages was the adoption of the three point hitch, that allowed fast hooking up of implements, and the raising of the tooling from the drivers seat, and a rear PTO, allowing powered implements rather than belt drive, where they both had to be stationary
This greatly increased the speed where a farmer could plow a row, lift the tooling and then start a new row after the turn, rather than stopping, getting off the seat and adjusting the implement
In the space of a decade, all while the Deprssion was ongoing, US Tractors left the Soviet Fordsons and crawlers in the Dust, so to speak, in overall ability and productivity