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8 Cards in this Set
- Front
- Back
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What 3 types of chart are typically used in flight planning?
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1. Sectionals 1:500,00
2. VFR Terminal Chart 1:250,000 3. WAC Chart 1:1,000,000 |
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What are the revision limits of the various charts?
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Sectionals and VFR Terminal charts are semiannual.
WAC is annually. |
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Where does the prime meridian pass through?
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Greenwich England. It is used as the zero line from which measurements are made in degrees of E and W to 180 degrees.
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How many degrees are there between time zones?
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15 degrees. 360 degrees by 24 hours in a day.
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Why should course measurements be taken at a meridian near the midpoint of a course?
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Because the meridians converage at the poles and the angular difference changes.
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Describe variation?
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Variation is the angle between true north and magnetic north.
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What is the agonic line?
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The agonic line runs north/south near the eastern part of the country and is the location where there is no angular difference between true north and
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What is the path or fomula used to arrive at CH?
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TC +/-- WCA = TH.
TH +/-- variation = MH MH +/-- deviation =CH |
