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CHAPTER ONE
LOW-LEVEL AND TACTICAL FORMATION
If a route has three legs that are 90 to each other, as in Figure 1-9, you can
adjust your turn to either lose or gain time think of it as a parallelogram. For
example if you have confirmed you are one minute early at a previous
checkpoint you can simply turn 30 seconds past your next turnpoint. At 180
knots GS you will travel 1.5 miles in 30 seconds so if you parallel your course
1.5 miles to that side and turn abeam your next turnpoint you will lose 1 minute.
The same technique will work if are late - you just turn 30 seconds early at your
turnpoint.
Figure 1-9 Timing Correction
A circular or semicircular route allows you to cut off part of the route to make
up time. You can just skip one turnpoint or turn prior to reaching a turnpoint.
When you skip a turnpoint, estimate the distance to the new turnpoint, calculate
the time it will take you to cover that distance, and then add up the time it
would have taken to fly the two legs you skipped. The difference in time
between the original route and the new route is the time you saved. The same
theory is used if you turn early at a turnpoint as in Figure 1-10 and intercept the
1-24 LOW-LEVEL NAVIGATION


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