A109 Basic Navigation Flashcards
1
Q
longitude
A
- Think Ladder -> Long supports go vertical
- Prime Meridian is 0 deg and through Greenwich England
2
Q
latitude
A
- Think Ladder -> rungs go across and so do latitudes
- 90 deg line is at the north pole. 0 deg at the equator
- Latitude stated first
3
Q
true north
A
Where longitudinal meridians converge
4
Q
magnetic north
A
attracts needle of compass
5
Q
magnetic variation
A
angular difference between true and magnetic north
6
Q
Isogonic lines
A
Define the magnetic variation for aviation purposes
7
Q
agonic lines
A
Where mag and true north are same
8
Q
true course
A
Course measured with respect to true north
9
Q
mag course
A
- Course with respect to mag north
- -Remember east is least, west is best
- -Mag course = true course +- variation (if east, subtract ; if west, add)
10
Q
time
A
Coordinated Universal Time (UTC) - based in Greenwich England, 180 longitude is the international date line
11
Q
Compass Deviation
A
- Electrical stuff in airplane can deflect magnetic compass onboard
- Correct with Deviation measurement
- True Course +- Variation = Mag Course +- Deviation = Compass Course
12
Q
VFR Cruising altitudes
A
- Apply when flying at or above 3000 AGL
- If flying east, fly at odd thousands + 500 ft (MSL)
- If flying west, fly at even thousands + 500 ft (MSL)
- Note: IFR flights are flying on the whole thousands
13
Q
Define dead reckoning
A
Computations of direction and distance from a known position (think google maps)
14
Q
Pilotage
A
- Navigation by reference to visible landmarks
- VFR terminal charts are used to assist when flying in and around Class B airspace
- Aeronautical charts are most common charts used by VFR pilots
15
Q
**The GPS consists of three segments
A
Space segments, user segment, control segment
