Why are aircraft routes not built in a straight line? Why fly back always faster and where can I see a flying plane online? This article will tell about it.
Watching the flight
If you're curious to see how airplanes fly,flight routes and not only, you can look at services such as Flightradar. It is fascinating to monitor online the movement of all airliners in the world - the data on the servers are updated every half minute. In addition to observing the aircraft figurine, you can find out a set of information about it:
- airline number and airline affiliation;
- a photo;
- current speed and altitude;
- point A and point B;
- distance from the airport and much more.
Neither the presidential side, nor military aircraft will not be reflected in these services - only the routes of passenger aircraft.
Trajectory: straight or curve?
По какой траектории перемещаются воздушные суда?Those who have seen the online routes of the planes, and even those who often fly, have the impression that the plane is flying in an arc, which is quite strange - is there really not enough sky? However, once again looking at the flight line, you will notice that the upper part of the arc tends to the pole. The plane moves quite logically straight, but when a round Earth is projected on a flat screen, a curve comes out instead of a straight line. The loyalty of this theory can be confirmed with the help of a student globe and a string stretched between two cities.
But the routes of the aircraft - not a solid line.The airway is a set of straight lines between control points, which, although lined up so as to make the flight distance minimal, do not draw it perfectly smooth. For such points take both radio beacons and certain geographic coordinates. Their names consist of memorable five-letter combinations.
Важно и то, что для двухдвигательных самолетов (а they are becoming more and more) the route should be built in such a way that in case of failure of one engine, the board could “reach out” to the nearest airport. Consequently, its route will be laid so that to some extent go around the poles, deserts and oceans.
А как быть с тем, что полет в одну сторону всегда shorter than the other? Passengers are trying, each in its own way, to explain the phenomenon, to the extent that this is influenced by the rotation of the planet. The reason is here in the winds. At the altitude that the routes of the aircraft were built, in its advantage the air masses move from west to east. Therefore, with a fair wind, the speed of the aircraft increases, and when the wind "in the nose" slows down.
Airport Routes
Причиной, почему самолет садится в аэропорту the wind is also on this lane, and not on the other. Both during takeoff and landing, it must be oncoming, in extreme cases, sideways. With passing - the speed of the air vehicle increases, and it may simply not be enough length of the runway. Therefore, each of them has its own marked number.
On the routes of aircraft in the airport areaThere is also an impressive number of restrictions: the ban on flying directly above the city or above a special object - a regime establishment or an elite dwelling, whose inhabitants are irritated by the constant noise of engines above the house.
