Navigation: General Knowledge Flashcards
Air navigation
The process of determining the geographic position and maintaing the desired direction of an aircraft relative to the surface of the earth
What are the three types of air navigation?
- Dead reckoning
- Visual
- Electronic
Dead Reckoning Navigation
Directing an aircraft and determining its position by the application of direction and speed data from a previous position
What are the four main components of dead reckoning naviation?
- Position
- Time
- Speed
- Direction
“PTSD”
Position
The geographic point defined by coordinates
Latitude
Angular distance north or south of the equator
“Latitude is FLATitude”
Longitude
Angular distance east or west from the Prime Meridian
Direction
Angular distance from a reference
Speed
The magnitude of the velocity of an aircraft
What are the three primary aircraft instruments essential for dead reckoning navigation?
- BDHI/Remote gyro vertical compass card
- Clock
- Airspeed indicator
What function does the BDHI/Remote gyro vertical compass card have?
Providing direction & position
What function does the clock have?
Providing time
What function does the airspeed indicator have?
Providing speed
Visual navigation
Navigation that requires maintaining direct visual contact with the Earth’s surface
Electronic Navigation
Navigation that requires the use of electronic devices to determine position
What is the primary use of a divider?
To measure distance
What are isogonic lines?
A line connecting points of equal variation found on most Lambert conformal chart
What are parallels?
Lines of latitude
(generally run horizontally on a chart)
Great Circle Route
The shortest distance between any two points on the earth’s surface
Course
The intended flight path
Heading
The direction in which the aircraft is pointed
Track
The actual flight path
What are the two types of Lambert Conformal Charts?
- Operational Navigation Chart
- Tactical Pilot Chart
What is a plotter used for?
Used to aid in drawing course lines and measuring direction
Variation
The angular distance between True North and Magnetic North from any given position on the earth’s surface
What line of latitude is a Great Circle for a Lambert conformal chart?
The Equator
The only line of latitude to bisect the center of the Earth is the Equator
What line of longitude is considered a great circle?
All lines of longitude are Great Circles
This is because they all bisect the center of the Earth
What is another name for lines of longitude?
Meridians
What is another name for lines of lattitude?
Parallels
What is the primary purpose of a jet log?
Fuel planning
What are the two types of Lambert Conformal charts?
- Operational Navigation Chart
- Tactical Pilotage Chart
Describe parallels on Lambert Conformal charts.
Equally spaced concentric circles
The equator is the only parallel that is a Great Circle
Describe meridians on Lambert Conformal charts.
Straight lines converging towards the poles
All meridians are Great Circles
How many degrees are in an hour?
15°
