If you look closely at the cab of KamAZ tractors, you can see some kind of convex detail above the headlights, the purpose of which is completely unclear not only for most people, but also for many motorists. In fact, almost every tractor unit has (should have) such a structural element, because it performs a very important task while driving.
If you look closely at the KamAZ tractors, you will notice that there are some mysterious plates on its cab, above the front lighting devices. They are located at the corner of the cab. It should be noted right away that this structural element is present not only in domestic cars, but also in the vast majority of other tractors. Moreover, the mysterious plates at the corners are not at all a "bold" design element, but an important structural element of the car's cabin.
The described contraption is called - the corner fairing of the cockpit. As you might have guessed from the name, the most important task of this element is to improve the aerodynamic performance of the car. The fact is that when a car moves at any significant speed, it begins to experience what is called "drag." How “harmless” it is for the car depends on the weight of the cab, as well as its shape. In this case, some problems can be mitigated by using additional aerodynamic elements (in our case - literally!), Such as fairings.
Air turbulence plays an extremely negative role when driving at high speeds. First, they significantly increase the fuel consumption of the vehicle. In the case of trucks and tractors, the angled cab fairings can reduce fuel consumption by 0.3-0.5%. It seems that this is not a lot, but when you consider how much these cars drive every day, it turns out to be a very significant amount per trip.
Secondly, the angular fairings make it possible to neutralize a number of negative impacts on the car's cabin from the side of turbulence. In particular, they protect the windshield, doors, door handles and some other important elements from the accumulation of excess dust and dirt. This is especially relevant for army tractors and trucks, which, on duty, often move along dirt roads or in places where there are no roads at all.
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