Aerodrome Lighting

Question 1

Describe the lighting intensity classifications.

Answer 1

• Light Intensity High (LIH),
• Light Intensity Medium (LIM) or
• Light Intensity Low (LIL).
  precision approach runways high intensity lighting is normally provided with 5 stages of intensity control.
  Other runways are normally provided with 2 stage

Question 2

REDL

Answer 2

Runway edge lighting
Fixed Omni White
not more than 100m spaced
not more than 3m outside runway edge

Question 3

RTHL

Answer 3

Runway landing threshold lighting
Fixed Uni Green Extend full width
not less than 4 spaced lights
not less than 1m from edge lights

displaced threshold lights
lit by 2 wing bars of 4 lights

Question 4

RENL

Answer 4

Runway end lighting
Fixed Uni Red
May extend full width
not less than 4 spaced lights

Question 5

RCLL

Answer 5

Runway centreline lighting system
White threshold to 914m from end
Red/White between 914m & 300m from end
Red between 300m & end

Question 6

REIL

Answer 6

Runway end identifier lighting
approx 30m from extended centreline
Flash Uni White LIH
Flashes 60/min
2 intensities

Question 7

CGL

Answer 7

Circling guidance lighting
Provide positive Tracking
White LIH

Question 8

RLLS

Answer 8

Runway lead in lighting
Provide positive Tracking
Fixed or Flashing Omni Red

Question 9

PAL

Answer 9

AD 1.9

Question 10

PAPI

Answer 10

Precision approach path indicators
Provides correct glide slope
Left hand side
300m beyond threshold

Question 11

Aerodrome Beacon

Answer 11

Flash
White or Green/White
12 – 30/min
3.75sec of darkness

Question 12

PAPI - slightly low

Answer 12

white - red - red - red

Question 13

VASIS - too low

Answer 13

red red
red red

Question 14

T VASIS - too low

Answer 14

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