Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ATPL Nav > ATPL Nav Fundimentals > Flashcards

ATPL Nav Fundimentals Flashcards

1
Q

What is Grivation?

A

A combination of Variation and Convergence.

Is the difference between Grid North and Magnetic North.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What type of charts are more commonly used for Navigation in the Mid Latitudes?

A

Lambert conformal as they are more accurate then Mercator charts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

1nm = …..m?

A

1852m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

1nm = …… SM?

A

1.152 Statute Miles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

1nm = ….. Ft?

A

6080ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

1sm = ……m?

A

1610m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

1m = ….ft?

A

3.28ft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

1ft = …..m?

A

0.3048m

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

1ft = ….in?

A

12 inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

1in = …..cm?

A

2.54cm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

ISA Temperature Lapse Rate?

A

1.98 Degrees up to 36,090ft where it is isothermal at -56.5 degrees

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

JSA Temperature Lapse Rate

A

2 Degrees/1000ft with no correction at the tropopause

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Factors affecting twilight

A
  • Latitude (the biggest factor)
  • Season
  • The height of the Observer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Define Visability

A

The greatest distance at which a black object of reasonable dimension, situated near the ground can be seen and recognised when observed against a bright background.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Factors affecting Visibility range

A
  • Background Colour
  • Whiteout
  • The Sun
  • The moon
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is RVR and when is it reported?

A

Runway visual range - is the horizontal visibility along the runway as seen from a point 5m above the touchdown point.

It is reported when visibility reduces below 1500m.

Mid point and stop end will be reported when it is below the touchdown point value or when Visibility is below 600m

16
Q

What are the ideal properties of a Navigation chart?

A
  • Bearings in a chart should represent bearings on the Earth.
  • All shapes should be correctly represented.
  • Great circles and Rhumb lines should both be straight lines (Not Possible)
  • Scale correct and constant at all points on earth.
  • Longitude and Latitude to cross at 90 Degree angles.
17
Q

What makes a chart Orthomorphic?

A
  • All latitudes and Longitudes meet at 90 Degree angles.

* Has Correct scale.

18
Q

Properties of a Mercator Chart?

A
  • Orthomorphic
  • Cylindrical projection.
  • Scale not constant (is only exact at the equator (increases as latitude increases))
  • Cannot be used above 70N/70S
  • Rhumb lines are straight
  • Great circles are convex to the nearest pole.
  • Distance difficult to measure
  • Not used in aviation.

Commonly used in equatorial regions.

MRS CONVEX POLE:

M - Mercators
R - Rhumb lines are
S - Straight
CONVEX POLE - Great circles.

19
Q

Lambert Conformal Conic Projections Chart properties?

A
  • Orthomorphic
  • Conic Projection (Cone)
  • Constant scale
  • Poles are projected
  • Great Circles are straight
  • Rhumb lines are curved ( Concave to the nearest pole.
  • Distance easily measured
  • Widely used in aviation

ATPL Nav (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions