For decades, aviators heading into or out of Wichita Eisenhower National Airport in southeast Kansas have had three runways to choose from: 1L/ 19 R, 1R/ 19 L, and 14/32. Now, at the orders of the FAA, the airport will waste hundreds of thousands of dollars to give itself a makeover. Proletarians will repaint those immense quantities at the ends of each runway and change voluminous signage. Aviators and air traffic controllers will study new cite manuals and approaching dishes, all updated to reflect an airfield whose three runways ought to have renamed. World, gratifies 2L/ 20 R, 2R/ 20 L, and 15/33 — which happen to be the same runways that have been greeting aircrafts since 1954.
This is not a “What’s in a mention? ” situation. The runways may be the same sweet-smelling extends of tarmac they’ve always been, but the world around them has changed. Well, the magnetic fields around the world have changed. The planet’s magnetic poles–the points that compasses recognize as north and south–are always strolling about. The magnetic North Pole( as opposed to the geographic one, which doesn’t move) alters by as much as 40 miles a year, and is steadily foreman from somewhere over Canada toward Russia.
That’s a problem, because most runways are mentioned for their magnetic leaders. Take Wichita’s 14/32. First off, because aircrafts can land or take off from either direction, they are able to think up it as two runways: 14 and 32.( Pro tip: Pilots respond “one-four” and “three-two, ” not 14 and 32.) If you’re looking at a compass, one death is about 140 degrees off of north, weighing clockwise. The other extremity is 320 positions off. For simplicity’s sake, the starts are rounded to the nearest 10, and dropped to two digits. So if you’re examining down at Wichita Eisenhower, runway 14/32 is the one extending from the northwest to the southeast. The airport’s other runways, 1L/ 19 R and 1R/ 19 L, handiwork the same room: The 1 means one outcome of the runway is 10 degrees off north, the 19 means the other resolve is 190 grades off. They share quantities because they extend parallel to one another. That’s why they have letters: The L and R stand for left and right, respectively entailing west and east.
That establishes happenings easy for aviators, especially if they’re newbies at the airport in question. When they get the guild to land at runway 20 R, they can easily pick it out and make sure they’re properly lined up for touchdown.
But those quantities, covered in the 1950 s, “re no longer” accurate, at least not in agreement with the magnetic navigation tools that commercial aircraft still use. The FAA knows all about those itinerant poles, and regularly evaluates runway designations to make sure they’re still accurate. Happenings only change when the compass learn switchings a certain amount. Enunciate the pole alterations such that the heading of 258 degrees is actually 259 magnitudes. That still rounds to 260, and the runway would still be called 26. But if the compass read starts from 258 to 254, you’re now looking at runway 25.