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Flashcards in BGS post its - GNAV Deck (15)
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1

What is deviation dependant on?

the Hdg of the A/C

2

What are transverse mercator charts?

the ones that include the poles

3

What shape are lines of latitudes on a transverse mercator chart?

elipses

4

what give the best reference in freezing conditions after heavy snowfall?

large rivers

5

What is the ICAO definiation of ETA?

ETA at destination

6

what does the //// symbol mean on a time almanac?

constant twilight between sunset and sunrise

7

why does the solar day last longer than the sidereal day?

due to the earth orbit being in the same direction as the earth roation 

8

what is DR accuracy based on?

Flight time since last position fix

Accuracy of forecast weather

Accuracy of TAS & GS

Accuracy of calculated heading

9

What is the declination of the sun?

the angular distance of the sun north or south of the celestial equator.

10

What is zenith?

when the sun is directly over the observer

11

When is the difference between the mean and apparent sun largest?

Feb - March

12

When is the difference between the mean and apparent sun largest?

April - august

13

What is the symbol for a military aerodrome?

a circle with no notches on it

14

BELOW which latitude will the sun always rise and set every day?

66.5N/S

NOT INCLUSIVE

15

How does the mean sun travel in relation to the celestial sphere?

along the celestial equator