u11 Flashcards
meridian definition
semi great circles that join at the poles
where is the location of the prime meridian and international date line
prime meridian 0º london
international date line 180º opposite
longitude is measured in what units
degrees, minutes and seconds
there are _____ mins to 1º and _____ sec to 1 min
60
60
1 hour of time is _____ º longitude
15º
T/F: 1 min of longitude has a constant length
false because shorter up north close to poles have close lines of longitude so different ratio
1 minute of latitude is ____ NM
1
60 minutes of latitude = ______ º
1º
the equator is an example of a ____ and _____
great circle and rhumb line
1 NM is _____ ft
6080 ft
the shortest path between two points on earth is what route
great circle
what are examples of rhumb lines
parallels of latitude
what is magnetic variation
angle between the magnetic meridian and true meridians
to convert true heating to magnetic heading, what do you do
east is least (minus), west is best (add)
to convert magnetic heading to true heading, what do you do
subtract westerly, add easterly
what is magnetic deviation
magnetic fields of plane and radios mess with compass
how often do you do a compass swing
annually
what is the definition of bearing
position of a location relative to north
what is the definition of air position
position of a plane if there was no wind
VNC chart:
- which altitudes
- which locations
- projection
- great circle or rhumb lines?
- 1 in = ___ SM
updated how often
VFR navigation chart
- low to medium altitude
- all of canada
- lambert conformal conic projection
- great circles
- 1 in = 8 SM
- 2 years
VTA charts
- altitude
- location
- projection
- great circle or rhumb lies
- 1 in = ____ SM
- updated how often
VFR terminal area charts
- low
- busiest areas of canada
- transverse mercator projection
- rhumnb lines
- 1 in = 4 SM
- 2 years
Lo vs Hi charts
- flight levels
- projection
- what does it tell us
- how often updated
Lo chart = IFR below 18 000 ft
Hi chart = IFR above 18 000 ft
- great circles (lambert conformal conic)
- radio navigation aids/airports
- 56 days
how often is CFS updated
56 days
what is the CAP, what information does it give us and how often updated
Canada air pilot
IFR arrival and departure procedures, noise abatement procedures
56 days
what is the WAS and how often updated
water aerodrome cupplement
annually
what is the DAH, what does it tell us and how often updated
designated airspace handbook
airspace and classes in canada
56 days
what is the DAH, what does it tell us and how often updated
designated airspace handbook
airspace and classes in canada
56 days
what is the lambert conformal conic projection
great circle
shortest distance
i’m using a VNC, am i flying a consitent heading from point A to B?
no a VNC is great circle lines, so you’ll be changing heading during your route
change heading 2º for every 3º of longitude
flying east the 2º is added
flying west the 2º is subtracted
what is a mean solar day
the pass of the sun over a specific meridian of longitude (24h or 360º longitude/day)
if UTC is 1am, what is the local time in ontario?
UTC to EST is -5h so 8pm the day before
what is the time difference between UTC and CST?
-6h
when does night officially begin,
after evening civil twilight ends and before morning civil twilight begins
does civil twilight count as day or night to Tc
day
what is the standard meridian for the CST time zone
90ºW
1º = _____ mins
4 mins
i start with knowing my true track, what must i account for to know my true heading
wind correction angle
i know my true heading, what must i account for to know my magnetic heading
magnetic variation
i know my magnetic heading, what must i account for to know my compass heading
deviation
the double track error method for getting back to your desired track only works for
first half of flight
what is DR navigation
dead reckoning
flying with time, distance and direction only
what is pilotage
flying to destination using visual landmarks only
what is air position vs ground position
ground position = point on the earth directly underneath the plane
air position= where the plane would be after a period of time based on heading and true airspeed (where would i be if no winds)
