Flight Planning Flashcards
Longitude lines are called ____ of longitude
MERIDIANS
Where is the prime meridian situated
Name and Longitude
GREENWICH MERIDIAN
o° LONGITUDE
Longitude is reference from which 2 points on the compass from the prime meridian
EAST to WEST of prime meridian
Longitutde are cicles slicing up the plant from the North to the South.
Latitude are circles slicing up the plant horizontally i.e. from a side on view, the circles go around the plant horizontally measured in degrees from the equator
180° opposite of the prime meridian is referred to as what
ANTI MERIDIAN
Latitude lines are called ____ of latitude
PARALLELS
Longitutde are cicles slicing up the plant from the North to the South.
Latitude are circles slicing up the plant horizontally i.e. from a side on view, the circles go around the plant horizontally measured in degrees from the equator
How do you read the following location
N52°33’15” E001°21’55”
North 52° lattitude, 33 minutes and 15 seconds
East 001° longitude, 21 minutes, 55 seconds
On a chart, move north then east to find position
Longitude lines get CLOSER or FURTHER apart closer to the equator
FURTHER APART
Close to the poles, lines of longitude get closer together, meaning the measurement between longitude lines at the equator would be MORE than at the poles
A measurement of 1/60th of a degree in latitude is known as what
NAUTICAL MILE
1 knot is the unit of speed defining what distance travelled in what time
1nm in 1 hour
Navigational direction on earths surface
Always uses the following 3 references;
1. Reference from ____
2. Measured in ____
3. Expressed in ____ digits
- NORTH
- DEGREES
- 3 DIGITS
Earths magnetic north is not uniform. What can influence it
GEOGRAPHIC FEATURES
Field can be “bent”
What are the lines of equal magnetic variation called
ISOGONALS
What is an ISOGONAL
Lines of equal magnetic variation
What is the definition of VAR
Difference in bearing between True North and Magnetic North
VAR = Variation
Maps and charts (generally) reference TRUE or MAGNETIC north
TRUE
Aviation charts reference elevations from which point
AMSL
Average Mean Sea Level
Elevations are not shown on a chart unless they reach which height
500 ft AMSL
It is not possible to guarantee elevation clearance unless flying with the altimeter set to which reference in the kollsman window
QNH
References AMSL
Contour lines on a map indicate what
Equal lines of elevation
On a chart/map, what is the definition of an obstruction
MAN-MADE OBJECT
Obstructions given in reference to AMSL
What are 4 examples of a man-made obstruction
- Mast
- Pylon
- Radio Tower
- Tall Building
Tall obstructions on charts above ____ ft have 2 references.
What are the references
- 1000 ft
- AMSL and AGL
AGL - Average Ground Level i.e. level above the ground
Obstructions are not shown on a chart unless they reach more than ____ ft
328 ft
What does MEF stand for
MAXIMUM ELEVATION FIGURE
MEF is referenced against which point
AMSL
MEF is marked on a chart/map at which intervals
Each 30 minute Lat/Long
What does an MEF define
TALLEST OBSTACLE or HEIGHEST TERRAIN
within referenced grid
What are 3 specific areas defined on aviation charts that a pilot must consider during flight planning
- DANGER
- RESTRICTED
- PROHIBITED
REMEMBER: You are a DeRP if you do not plan properly!!
A danger area on a chart prefixed with asterix means what
PROHIBITED ENTRY
Protected by By-laws