In the 1-in-60 method, the track error angle uses distance already _____, while the closing angle uses distance _____ to the intercept.

### Why this is right Track error is based on the route segment already completed, so it uses distance flown. Closing angle is about reaching a selected future point, so it uses distance remaining to that intercept. ### The concept Both calculations use lateral displacement and the 1-in-60 approximation, but the distance has a different role in each. Confusing the distances can produce a correction that is too large or too small. For destination recovery, add the resulting angles; for an earlier intercept, use the distance to that earlier point. ### Terms - **Track error angle**: The angular error estimated from displacement over distance already flown. - **Closing angle**: The angle required to regain the route at a future point. - **Intercept**: The planned point of rejoining the route. ### Remember Past distance measures error; future distance determines closure.