How do farmers also have their fields plowed so straight for so far? Do they use GPS guidance somehow? And if they use some sort of tech, were they able to plow fields this straight back in the day?
In: 250
Modern tractors come with autoguidance features that allow the tractor to self drive in a straight line. Not only that, but after the turn at the end of the field (which can be done manually or automatically) the system starts the next line exactly at the right width to avoid missing a strip or overlapping with the previous one.
Basic GPS service has a precision of 10 cm (4 inches), there are more precise services that do real time correction on the GPS signal, these go to a precision of 2,5 cm (1 inch) but cost more money. Typically it’s a subscription based service.
Source: I work at one of the main tractor manufacturers
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