BGS post its - GNAV Flashcards
What is deviation dependant on?
the Hdg of the A/C
What are transverse mercator charts?
the ones that include the poles
What shape are lines of latitudes on a transverse mercator chart?
elipses
what give the best reference in freezing conditions after heavy snowfall?
large rivers
What is the ICAO definiation of ETA?
ETA at destination
what does the //// symbol mean on a time almanac?
constant twilight between sunset and sunrise
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
what is DR accuracy based on?
Flight time since last position fix
Accuracy of forecast weather
Accuracy of TAS & GS
Accuracy of calculated heading
What is the declination of the sun?
the angular distance of the sun north or south of the celestial equator.
What is zenith?
when the sun is directly over the observer
When is the difference between the mean and apparent sun largest?
Feb - March
When is the difference between the mean and apparent sun largest?
April - august
What is the symbol for a military aerodrome?
a circle with no notches on it
BELOW which latitude will the sun always rise and set every day?
66.5N/S
NOT INCLUSIVE
How does the mean sun travel in relation to the celestial sphere?
along the celestial equator
