A/d Lighting

Question 1

A/d lights to have variable intensity

Answer 1

App lighting systems
R/y edge lights
R/y th/hld, centreline, touchdown
T/y centreline

Question 2

A/d lights may be turned off providing

Answer 2

They can be switched on again within a period of 1 hour before the eta of the a/c

Question 3

A/d needs to have emerg lights for at least

Answer 3

The primary r/y if no back up

Question 4

A/d beacons colour codes

Answer 4

Land a/d = white and green

Water a/d = white and yellow

Or white flashes

Question 5

Identification beacon and colour codes

Answer 5

To be used at night where the a/d cant be seen easily from the air

Land a/d = flashing green

Water a/d = flashing yellow

Question 6

Calvert app system

Answer 6

5 bars and a distance coded centreline

Question 7

A barrette and spacing

Answer 7

Groups of 3 or more lights arranged as a bar

Each bar = 150m spacing up to 900m

Question 8

Single app lighting system spacing of the cross bar and distance of the centreline lights

Answer 8

Single centreline lights out to 420m

Single crossbar 300m from the t/hld

Question 9

CAT 1 app lighting structure

Answer 9

Yellow caution zone at the end

Centreline out to 900m - all fixed, variable white - 1st 300m = 1 line , 2 lines to 600m, 3 lines to 900m

5 crossbars 150m apart

Question 10

CAT 2 and CAT 3 app lights diff from CAT 1

Answer 10

Supplementary app lights for the 1st 300m red and white barrettes

No yellow caution area

Touchdown zone lights - 900m

Colour coded centreline at the end of the r/y

Question 11

PAPI and definition

Answer 11

Precision app path indicators

A wing bar of 4 lights uniformly spaced

Question 12

APAPI

Answer 12

2 lights instead of 4

Question 13

MEHT measured from and its purpose

Answer 13

Min eye height

Eye to the bottom of the undercarriage

Assesses the usability of the PAPIs

Question 14

VASIS and what doe they consist of

Answer 14

Visual app slope indicator system

2 sets of 3 lights - pilot on the glide slope - 1st set of lights appears white and the 2nd set appears red

Question 15

R/y edge lights colour

Answer 15

Variable intensity white showing in the direction from which the app are made

Pre t/hld (displaced t/hld) = red in the app direction

Question 16

R/y t/hld and wing bar lights colour

Answer 16

Fixed unidirectional showing green in the direction of the app to the r/y

Question 17

R/y t/hld identification lights

Answer 17

Used for a non precision r/y

Flashing white lights unidirectional in the direction of the app to the r/y

Question 18

R/y end lights

Answer 18

Fixed, unidirectional showing red in the direction of the r/y

Question 19

R/y centreline lights

Answer 19

Fixed, variable intensity white

CAT 2 and 3 - last 900m, shown as alternate red and white

Question 20

Touchdown zone lights

Answer 20

Fixed, unidirectional, variable intensity white

Question 21

Stopway lights

Answer 21

Fixed, variable intensity showing red in the direction of the l/d r/y

Question 22

R/y lead in lights

Answer 22

Groups of at least 3 flashing white lights - should flash in sequence to the r/y

Question 23

Circling lights, guidance

Answer 23

Fixed, flashing white

Question 24

T/y lighting

Answer 24

Edge = blue

Centreline = green

Question 25

Stop bars are used when the RVR

Answer 25

Is less than 350m

Question 26

Intermediate holding posn lights

Answer 26

3 fixed unidirectional showing yellow

Question 27

Road holding posn lights

Answer 27

Either
Controllable red (stop) or green (go)
Or
Flashing red lights

Question 28

R/y guard lights are fitted when and the colours

Answer 28

At the entrance of a r/y when the RVR is less than 550m -stop bar is not fitted

Flashing yellow - shows direction of taxing a/c