Figure 5-4 Choctaw/Crestview

CHAPTER FIVE

INSTRUMENTS FLIGHT PLANNING

Figure 5-4 Choctaw/Crestview

505.

SUMMARY

In this section, you learned when and how to update your fuel estimates. You know that to

update your fuel estimates, you must first determine GS and calculate the remaining time

enroute. You should perform a GS check whenever possible for each leg of your instrument

navigation route. You know a GS check is at least one minute long and does not begin until your

DME is equal to or greater than your altitude in thousands of feet. Additionally, you must

update your ETA for each checkpoint/NAVAID and EFR at the IAF if your time is in error by

more than 30 seconds or fuel is in error by more than 30 lbs.

5-6 IN-FLIGHT FUEL AND TIME ANALYSIS