Vertical Navigation

Question 1

The altimetre setting that should be used when departing an aerodrome should be ….

Answer 1

the local QNH

Question 2

When and what should the altimetre settings be when on climb to FL155

Answer 2

Local till the transition altitude then onto 1013 beyond FL110

Question 3

When cruising at FL155 what should be the altimetre setting …..

Answer 3

1013

Question 4

On decent from FL155 when should you change the altimetre setting …..

Answer 4

Change to the local QNH at the destination prior to passing through FL115 on decent

Question 5

If druing the cruise at FL155 it became necessary to decend to 7500ft when and what should the altimetre settings be …..

Answer 5

1. 1013 until the transition layer
2. Area QNH below the transition layer until ToD
3. From ToD to destination it should be on the destination QNH

Question 6

QNH = 1004

What is the lowest FL that can be planned on a track of 037⁰M

Answer 6

FL115

Question 7

If the local QNH at the destination aerodrome is less than that at the departure aerodrome, what is the actual height of the aircraft AMS if the pilot maintains a constant altimeter reading?

Answer 7

The aircraft would be decenfing during the cruise at FL155.

Constant pressure levels slope down towards these lower pressures. Since the pilot is flying a constant pressure he is following the slope

Question 8

The transition level when the QNH is 1004 is …..

Answer 8

FL115

Question 9

If the QNH is 1004hpa what is the depth of the transition layer …..

Answer 9

1230ft

Question 10

If the QNH is 1004 what is the height of the transition layer?

Answer 10

It is always at 10000ft - it only changes in relation to the QNH but the number 10000 never changes

Question 11

What rate of descent is required to decenf from 10000ft to 5000ft in 20nm if the descent GS =120kts in a 20kt tail wind?

Answer 11

500fpm

Careful with these questions - they are giving the GS and stating the tail wind to trick you!

Question 12

From the previous question if the wind was calm, the RoD would …..

Answer 12

decrease - without the tail wind the GS would be less so the RoD required would be less

Question 13

The transition layer is the lowest flight level available for cruise?

T/F

Answer 13

T

Question 14

An aircraft has its altimeter set to 1013hpa and the instrument reads 1500ft when over an aerodrome with an elevation of 500ft. If the QNH is 1003hpa the height of the aircraft above the aerodrome is?

Answer 14

700ft

Question 15

If 8/8’s of AC lie from 8000ft to 12000ft the highest appropriate level that can be planned for a VFR flight on a track of 090⁰M is …..

Answer 15

5500

Question 16

An altimetre should be reset from 1013 to the local/area QNH when ….

Answer 16

prior to reaching the transition level on descent

Question 17

If an aircraft hods a constant heading and a constant TAS, the drift that results is caused only by the wind and nothing else.

T/F

Answer 17

T

Question 18

A faster aircraft will suffer less drift on the same heading in the same wind than a slower one.

T/F

Answer 18

T

Question 19

If an aircraft holding a constant heading in a constant wind increases its TAS its TMG will change.

T/F

Answer 19

T

Question 20

An aircraft departs A for B holding a heading of 264⁰M. The pilot determines that on this heading he has 60 of left drift. If the FPT is 258⁰M what is the TMG?

Answer 20

258⁰M

There is no track error since the FPT is 258⁰M

Question 21

In the triangle of velocities the wind vectore acts …..

Answer 21

from the heading to the track

Question 22

FPT = 316⁰M

Wind = 220/25

Magnetic variation = 15⁰W

TAS = 185kts

The heading and GS to fly are ….

Answer 22

308⁰M @ 179kts

Question 23

The thickness of the transition layer when the QNH is 1028 is …..

Answer 23

1450ft

[1028 - 1013] x 30 = 450ft

1000ft + 450ft = 1450ft