• Sigrid Ellis

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    Sigrid Ellis is co-editor of the Hugo-nominated Queers Dig Time Lords and Chicks Dig Comics anthologies. She edits the best-selling Pretty Deadly from Image Comics. She is the flash-fiction editor of Queers Destroy Science Fiction, from Lightspeed Press. She edited the Hugo-nominated Apex Magazine for 2014. She lives with her partner, their two homeschooled children, her partner’s boyfriend, and a host of vertebrate and invertebrate pets in Saint Paul, MN.
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Okay, so, what is this boondoggle? (Part 1)

So what am I doing, exactly, at work today?

Okay. Let me explain. (No, take too long. Lemme sum up.)

When trainees walk in the door to Minneapolis Center (aka ZMP) they have completed a training program at one of a handful of places in the country. They ought to arrive knowing how to talk on the radio, they ought to know the basic characteristics of different aircraft, they ought to know the components of air traffic control. The first thing they do once here is a classroom section where they study the 7110.65, the federal order governing ATC. They also memorize the map of the airspace to which they are assigned. They memorize the locations of airports, navaids, airways, jet routes, outer markers, IR routes, VR routes, air refueling tracks, MOAs, restricted and prohibited areas, final approach courses, sector boundaries, the minimum IFR altitudes, minimum vectoring altitudes, frequencies, adjacent facility frequencies, altitude limits and shelfs, and other things I’m not recalling at this moment. This takse about three weeks of spending all one’s living free time in memorization. The test, at the end, is a large outline of your area. Blank. You fill it in. All of it.

The next section of training is Non-Radar. You see, significant portions of the country do not have radar coverage at lower altitudes. For instance, at the airports. (Refresher: Radar sites are located on the ground and broadcast a cone-shaped signal up and out. We do not yet use satellite i.d. to track airplanes, not legally.) So when one plane wants to take off of Bemidji airport, and another is trying to land, what do you do?

Well, there are rules for this. Rules. The 5-Minute Arrival-Departure Rule, the 44-Knot Rule, the Degree-Divergence Rule — these are all real rules covering different situations. Trainees memorize the rules. Then they are sent to the non-radar lab to work simulated problems. The non-radar lab is a room with big racks (doghouses) for holding flight progress strips, aka tickets. The tickets are put in stripholders and racked in the doghouses. Each plane has a speed, an altitude, a route of flight along airways, and an initial location in the sector. From this, the trainee computes where each aircraft is supposed to be at any given point. At points where the routes of flight cross or overlap, the trainee examines the times and altitudes of the aircraft involved and makes sure they are in accordance with the rules of separation. The clock is started, and “aircraft” — another student, typically — begin to call asking for things. Departures out of airports. Clearances to land. Altitude changes. You know, stuff.

It’s the job of the trainee to hold all of this in their head, to give the aircraft what they want, and to not fall behind. To, in the parlance of my job, keep the flick.


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