Tailwind · Vol I, N° 01
Tailwind.

An aviation study journal

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Task DLost Procedures

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Recommended: finish Task CDiversion first.

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Go to Task C

PA.VI.D.S1· S

Use resources to find location

Use available resources to determine the airplane's location

Re-fixing your position is a procedure, not a prayer — you run the methods in order until one of them gives you an answer you'd bet the flight on.

Work the methods

Take them fastest-and-surest first, all drawn from K1:

  • GPS — if you have it and trust it, the answer is already on the screen.
  • Landmark fix — if a unique, unmistakable feature is in sight, find it on the chart.
  • VOR cross-fix — if you're in range of two stations, the intersection of their radials is you.
  • ATC — if you're already talking to someone, ask them to identify you.
  • Dead reckoning — even with nothing else, your last known fix plus time, heading, and groundspeed gives a search box to start from: "I was over the river twelve minutes ago heading 270 at two miles a minute, so I'm somewhere in a roughly 24-mile arc west of it." That box is what tells you which landmarks and stations are even worth checking.

Keep the airplane stable the whole time. A held heading (S3) keeps your dead-reckoning estimate alive as a backup, so even a slow fix isn't starting from scratch.

In practice it looks like this: the GPS is dead, but you spot a large, oddly shaped lake off the left wing. You find a lake on the chart that matches the shape — except there are two of them in the area. So you tune a nearby VOR, and its radial puts you northeast of the station, which fits only one of the two lakes. Now you have a position you'd bet on. That's the whole difference between "a lake that might be the one" and a confirmed fix.

Confirm, don't assume

The real trap in this element is settling for "that's probably Centerville." A wrong fix is worse than an honest "unknown," because you'll confidently fly the wrong direction on it and dig the hole deeper — burning fuel away from help instead of toward it.

So cross-check two sources whenever you can: a GPS position confirmed by a landmark out the window, or a VOR fix confirmed against the terrain and chart. The standard you're holding yourself to isn't "a plausible guess" — it's a fix you're confident enough to act on. Confidence first, then the turn. And if no method gives you a confident answer, that's information too: it means it's time to climb and call ATC (R2), not to commit to a guess and hope.

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PA.VI.D.S2 · Plan and execute course of action

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