Chapter 18 Aerdorome Lighting Flashcards
When can aerodrome lights be turned off?
Yes, provided they can be turned on within 1 hr of ETA of next aircraft
Where are backup lights needed?
On at least the primary rwy
When is an aerdrome beacon needed?
If ad is intended for use at night
What colours must the ad beacon be?
Land ad = white and green
Sea ad = white and yellow (or white flashes only)
What is the Calvert system?
Consist of a distance coded centreline and 5 bars of approach lights
What is a barrette?
Groups of 3 lights or more arranged as a bar
Describe a simple approach lighting system
- single centreline of lights out to 420m
- single crossbar at 300m from threshold
Describe the CAT 1 approach lighting system
- centreline extends for 900m (fixed, variable white lights)
- 1st 300m of centreline = 1 row, 2nd 300m = two rows, last 300m = three rows
- 5 crossbars
- 1st crossbar at 150m from threshold
- each crossbar separated by 150m
- yellow caution area before stopway
Describe the CAT 2 and 3 approach lighting system
same as CAT 1 except for:
- supplementary approach lights for 1st 300m (red on outside and white on inside
- no yellow caution area
- TDZ lights
- colour coded centreline at end of rwy
Define PAPIs
A wing bar of 4 lights uniformly spaced
When on OR close to the approach what will the pilot see when using PAPIs?
- 2 reds nearest to rwy
- 2 whites furthest from rwy
Where are PAPIs located?
Always left side of rwy or both sides
What is an APAPI?
2 lights instead of 4
What is the minimum eye height (MEHT)?
Pilots eye to the bottom of the undercarriage
What does VASI stand for?
visual approach slope indicator
What does a VASI consist of?
2 sets of of 3 lights positioned as wing bars
What will a pilot see when on OR close to the glidepath when using VASIs?
First set = white
Second set = red
What colour a runway edge lights?
Fixed, variable intensity white lights (red when in pre-threshold area in approach direction)
Describe runway threshold lights
- fixed
- uni directional
- green (in direction of approach)
Describe threshold identification lights
- flashing white lights
- unidirectional in direction of approach
- placed either side of threshold
Describe runway end lights
- red
- unidirectional
- fixed
Describe TDZ light?
- fixed
- unidirectional
- white
Describe stopway lights
- fixed
- red
- unidirectional in direction of landing rwy
Describe rwy lead in lights
- 3 flashing white lights
- flash in sequence towards rwy where possible
Describe circling guidance lights?
fixed or flashing white lights
Describe taxiway edge lights
- blue
- omnidirectional
- fixed
Describe taxiway centreline lights
- fixed
- green
- omnidirectional
(Except in sensitive area and on high speed exits where they alternate between green and yellow)
Describe stop bar light?
- row of red lights
- can be wing bars or across taxiway
Describe the intermediate holding position lights
- 3 fixed unidirectional lights
- yellow
Describe rwy guard lights
- flashing yellow
- unidirectional in direction of taxiing aircarft
Where are rwy guard lights installed?
At entrances to runway when RVR is less than 550m and where a stop bar isn’t fitted
