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
