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|  QUARTERING ANALYSIS
Given a True Course and a preflight wind, quartering analysis can be used to estimate
what type of quartering wind the aircraft will experience (i.e. Right Head Wind). Once the
quartering wind has been determined True Heading can be compared to True Course, and
Ground Speed can be compared to True Airspeed (Figure 4.5-10)
Figure 4.5-10 Quartering Analysis
A list of the steps to calculate predicted True Heading and Ground speed are:
(ESTIMATE!)
1.
Plot the wind.
2.
Set the TAS.
3.
Set the TC.
(Confirm estimation.)
4.
Note the crosswind component.
5.
Note the headwind/tailwind component.
6.
Apply headwind/tailwind. (ground speed)
(Estimate the crab angle using the 10% Rule)
7.
Determine the crab angle.
8.
Apply the crab angle. (True Heading)
9.
Verify the estimate!
4.6-117
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