Figure 1-9 Timing Correction

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