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Navigation Flashcards

0
Q

Isoganals join what?

A

Places having the same variation

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1
Q

True vegans make dull company

A 
True
Variation
Magnetic
Deviation
Compass
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2
Q

Variation East

Variation west

A

Magnetic least

Magnetic best

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3
Q

Where treacle crosses multiple isoganals where should variation be taken

A

Where the greatest segment of the track occurs. Measure to the nearest whole degree

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4
Q

What is deviation

A

Angular difference between magnetic direction and compass direction

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5
Q

Deviation East

Deviation west

A

Deviation East compass least

Deviation west compass best

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6
Q

What is true bearing

A

Angular difference from true north of a line drawn between two point

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7
Q

What is relative bearing

A

The bearing of an object measured clockwise in degrees from the nose of the aircraft

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8
Q

Airspeed ICET

A

Indicated
Calibrated - position/instrument err
Equivalent - compressibility > 200kts
True - density

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9
Q

Relationship between IAS and TAS

A

When density falls, TAS higher for given IAS. TAS is IAS adjusted for density.

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10
Q

Heading vector

A

—->— single arrowhead

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11
Q

Track/ground speed vector

A

—»— double arrowhead

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12
Q

Wind speed/direction vector

A

—»>— triple arrowhead

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13
Q

Wind velocity from Metservice and Flight Information Service is True or Magnetic?

A

True

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14
Q

Wind velocity from Air Traffic Control, Flight Service at attended airports and UNICOM at uncontrolled airfields is True or Magnetic?

A

Magnetic

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15
Q

What is drift

A

The angle from the HDG/TAS vector to the TR/GS vector. Easy way to think if port or starboard drift is to think what way aircraft would drift if heading was track. Whichever way the aircraft would drift is the drift direction.

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16
Q

When dealing with wind components is a headwind positive or negative

A

Negative

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17
Q

When dealing with wind components is a tailwind positive or negative

A

Positive

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18
Q

The angular difference between a track and the wind direction is called

A

Wind angle

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19
Q

Wind correction angle is

A

The correction to allow for drift to fly a flight planned or required track

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20
Q

Definition of altitude

A

Vertical distance measured from mean sea level

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21
Q

Definition of pressure altitude

A

QNE. A surface of constant pressure related to a specific datum 1013.2 hPa measured in hundreds of feet (FL150 is 15000 ft. Commonly referred to as flight levels, and used over 15000 ft.

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22
Q

QNH

A

Mean sea level pressure. When set, altimeter reads altitude.
All aircraft 13000 ft and below use altitude
Set QNH on descent at 15000

23
Q

QFE

A

Pressure of a selected datum. When set altimeter reads height above datum (eg airfield$

24
Q

QNE

A

ISA sea level pressure. When set altimeter reads flight levels.
Used > 15000 ft.
Set QNE on ascent at 13000
Also called pressure altitude

25
Q

When flying from an area of high pressure to low pressure the altimeter will

A

Over read
High low high
30ft/hPa

26
Q

When flying from an area of low pressure to high pressure the altimeter will

A

Under read
Low high low
30ft/hPa

27
Q

NOSE

A

North odd + 500 - 270M to 89M
South even + 500 - 90M to 269M
IFR don’t add 500

28
Q

Time zone for Greenwich and NZ

A

Greenwich Zulu

NZ Mike

29
Q

NZST

A

UTC + 12

30
Q

NZDT

A

UTC + 13

D = bakers dozen

31
Q

Sunrise and sunset

A

When first/last part of sun visible

32
Q

Daylight

A

Morning twilight + sunlight + evening twilight

33
Q

Morning Civil Twilight (MCT)

A

When the centre of the sun is 6* below the sensible horizon

34
Q

Evening Civil Twilight (ECT)

A

When the centre of the sun is 6* below the sensible horizon

35
Q

What features affect daylight

A

Altitude - may be in sunlight at altitude but lose it when descending
Atmospheric conditions - clouds and rain
Obstructions - mountains

Take these into account when planning a flight terminating neat ECT

36
Q

Daylight zones found

A

AIP vol 4 gen 2.7

37
Q

How are common frequency zones indicated

A

Blue open diamonds

38
Q

How are MBZs indicated

A

Solid blue dots

39
Q

How are control zones (CTR) indicated

A

Solid blue lines

40
Q

How are control areas indicated

A

Solid purple lines

41
Q

What colour is used for instrument aerodromes

A

Purple

42
Q

What colour is used for visual aerodromes

A

Blue

43
Q

Are bearings on aerodrome charts magnetic or true

A

Magnetic

44
Q

Make sure know legends on VPC VNC and Aerodrome charts

A

.

45
Q

What is EET

A

Estimated elapsed time

46
Q

Define track error

A

The angle between the required track and the TMG

47
Q

When marking a DR position on a chart use what symbol

A

Triangle with dot and time

48
Q

What is a dead reckoning position (DR)

A

Places you anticipate you will be at a certain time based on track made good and ground speed

49
Q

How to mark visual fix on chart

A

Circle with dot and time

50
Q

What is set heading time (s/h)

A

When you settle on heading for first leg of flight

51
Q

What is the angular difference between flight planned track and flight planned heading

A

Flight planned drift

52
Q

What is the angular difference between heading and track made good

A

Actual drift

53
Q

What is the angular difference between flight planned track and track made good

A

Track error

54
Q

Formula for 1 in 60 rule

A

60/distance gone x distance off = track error

Should not be used if angle > 15 degrees

55
Q

GPS should use which geodetic system

A

WGS84

56
Q

How many satellites are required for RAIM accuracy

A
  1. 6 are required to isolate an unacceptable satellite

Flying (9 decks)

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