Nav 10 - Topographical Maps

Question 1

Review Questions

What are the three main types of map projections?

Answer 1

Cylindrical
Conical
Azimuthal or Tangential

Question 2

Review Questions

List the desirable properties of a map

Answer 2

Great Circles - Straight lines
Rhumb lines - Straight lines
Angles - Correct
Shape - Correct
Size - Correct
Scale - Correct and constant

Question 3

What are the desirable properties of a topographical map?

Answer 3

Orthomorphic
Conformal
Sufficient details

Question 4

What are the topographical maps used by the CAF?

Answer 4

Lambert Conformal: JNC, ONC, VNC

Transverse Mercator: VTA (VFR Terminal Area Chart)

Question 5

What are the different ways to show relief on a map?

Answer 5

Contours
Spot heights
Layer tinting
Hill shading
Hachures

Question 6

Review Questions

What are the three desirable properties of topographical maps?

Answer 6

Orthomorphic
Conformal
Sufficient details

Question 7

Review Questions

What are the five methods for showing relief?

Answer 7

Contours
Spot height
Layer tinting
Hill shading
Hachures

Question 8

What are the Topographical Map Preparation pre-flight points?

Answer 8

Draw intended tracks on a topo map
Number the maps in order of use (if required)
Familiarize yourself with the route

Question 9

What are the Effective Map Reading points for in-flight?

Answer 9

Orient map to the direction of flight
Determine your current position, use the principle of big to small features
Find a DR position down track by calculating approximately where you will be at a given time
Study the map to find a checkpoint or landmark
Find the landmark on the radar screen

Question 10

Effective map reading can be broken down into three words. What are they? Explain each term.

Answer 10

Watch - Use your watch as a first step in determining your position

Map - Locate a prominent landmark or checkpoint from your route of study that should be visible

Radar - Look up from the map and locate the selected feature on the radar screen

Question 11

Review Question

What method do we use for effective VFR navigation?

Answer 11

Watch - First step in determining position, This step is necessary to orient yourself to a particular area on the map where you expect to be at a given time.

Map - Search the map for a prominent landmark or checkpoint from your route study that should be visible

Radar - Look up from the map and locate the selected feature. Always looking: far to near; large to small; and from known to unknown.