CNAV

Question 1

What is dead reckoning

Answer 1

Calculating the position based on GS, wind/ direction and flying track

Question 2

What is pilotage

Answer 2

Using visual landmarks/ cues to navigate

Question 3

What is a meridian?

Answer 3

prime meridian is 0 degrees longitude located at greenwich

Question 4

What is a Anti-meridian?

Answer 4

180 degree longitude
- each is divided into 60 sections each called a minute
- each minutes is also divided into 60 sections call a second

Question 5

example
151* 49’ 32”

Answer 5

151* = degree
49’ = minutes ‘
32” = seconds

Question 6

What is a Latitude?

Answer 6

• Lines of parallel, also measured in * ‘ “
  Numbered according to the angle they make between the centre of the circle made by the equator and the point on the surface

Question 7

Measuring a direct,

Answer 7

if you stand on any meridian and walk north, you will end up true north

Question 8

What is a Rhumb Line?

Answer 8

all meridians converge atr the poles, if you cut each meridian at the same angle you will end up at the poles

Question 9

What is the great circles?

Answer 9

A Circle passes through the centre of the earth, also the shortest distance between point a and point b

Question 10

Small circles?

Answer 10

Circle of the earth thats does not pass through the centre but only in sections

Question 11

Magnetic variation

Answer 11

is the difference between true north and magnetic field at a set location

Question 12

what is Isogonal

Answer 12

A line joining places of the same magnetic variation

Question 13

what is Compass deviation

Answer 13

Electrical components in the Aircraft create a magnetic field/ interference causing deviation

Question 14

What other thing is compass deviation

Answer 14

Compass swing: Calibrating compass by turning on all devices in the cockpit and comparing compass with a calibrated compass

Question 15

what is a Mercator

Answer 15

Cylindrical surface
- most accurate at point f tengency
- accurate on small scale
- used for VTC ( Visual terminal CHarts)
- Suitable for nav on small area
- meridians are straight/parallel
Great circles are curved
- straight line cuts each meridian at the same angle

Question 16

how about Conic

Answer 16

• Cone Shaped
• charts that join east to west join perfectly
• Rhumb lines appear concave to nearest pole
• Used in a WAC (World Aeronautical Chart)

Question 17

T.I.T.S

Answer 17

Tune
Identify
Test
Select

Question 18

What is VOR

Answer 18

very high frequency omni range

Question 19

one minute latitude is how many nautical miles

Answer 19

1 nautical mile

Question 20

A Agonic line is something that is

Answer 20

Nil in magnetic variation

Question 21

one minute latitude is

Answer 21

on nautical mile

Question 22

which best describes one property of lamberts conformal conic projection

Answer 22

adjacent sheets may be joined east to west

Question 23

When is a equinox

Answer 23

when the days are equal in autumn and spring

Question 24

What is the southern solstice

Answer 24

summer souther solstice is the longest day in the year

winter souther solstice is the shortest day in the year

Question 25

which way does the earth rotate

Answer 25

west to east

Question 26

QNH

Answer 26

Atmospheric pressure above a aerodrome

Question 27

QNH

Answer 27

Atmospheric pressure above mean sea level

Question 28

1 HPA is equal to

Answer 28

30ft

Question 29

temperature drop how much by feet

Answer 29

2 degrees per 1000ft

Question 30

what is the transition layer

Answer 30

10,000ft-11,000ft

Question 31

What can not be conducted at the transition layer

Answer 31

cruising, only meant to be climbing or descending through

Question 32

An aircraft is not always pointing directly at the destination. The way the aircraft is pointing to arrive at a desired destination is known as:

Answer 32

Heading

Question 33

Track Made Good (TMG) is the:

Answer 33

track of the aircraft across the ground

Question 34

Some early pilots confuse track and heading. What is track?

Answer 34

Track is the path, the aircraft moves across a map to get from A to B.

Question 35

To plan and allow for drift the pilot must know:

Answer 35

TAS, Flight Planned Track (FPT) , windspeed and direction at cruising level

Question 36

The airspeed shown on the typical airspeed gauge in the aircraft is:

Answer 36

IAS (indicated airspeed)

Question 37

At high altitude IAS will read _____________ than the TAS.

Answer 37

lower

Question 38

The 3 things that determine drift are:

Answer 38

wind speed, wind direction TAS

Question 39

IAS can be taken as the same as CAS for a trainee pilot. True or false

Answer 39

True

Question 40

For flight planning TAS is more important than CAS. True or false

Answer 40

True

Question 41

To work out TAS, we need to know:

Answer 41

CAS, pressure height & temp or density height

Question 42

If you know where you started, your time flown, speed and direction then you are certain where you are using _______________ _____________________ navigation. (DRN)

Answer 42

Dead reckoning navigation

Question 43

The 1 in 60 rule effectively means:

Answer 43

every mile off track after 60 miles along a track, is the same as 1 degree of track error

Question 44

Final Reserve Fuel (aka Fixed fuel reserve) is expressed as

Answer 44

a time

Question 45

Contingency Fuel (aka variable fuel reserve) must allow for:

Answer 45

unexpected fuel consumption e.g. bad weather, a alternate

Question 46

When a destination alternate is required, considerations for fuel must include:

Answer 46

make a missed approach, climb to cruising altitude, then reach the destination alternate, descend, make an approach and to land

Question 46

Where does the transition altitude start?

Answer 46

10,000ft