Never mind electronic controls and guidance systems applied to modern farm machinery, the application of hydraulics to tractors and farm machinery has been one of the most important developments in farm machinery, and remains so, even in the 21st century!
Hydraulic control is a simple, but efficient means of conveying power to where it’s required, and is very much taken for granted these days.
It hasn’t always been the case though, as early tractors that replaced large, heavy steam engines and draft horses merely towed their implements, often using former horse-drawn equipment until manufacturers designed implements specifically for tractor use.
One of the early issues with the use of relatively light tractors was that of maintaining good traction, particularly when the going got tough on heavy wet ground. The remedy was to use steel wheels with aggressive tread in the form of spade lugs and to add extra
