Special-purpose markings
| Marking | Shape | Colour | Where |
|---|---|---|---|
| Unprepared aerodrome boundary (AGA 5.1) | Conical or gable markers; evergreen trees in winter also work | International orange and white, or solid international orange | Take-off/landing area boundary |
| Air taxiway edge marker (AGA 5.2) | 35 cm high, three bands | Yellow, green, yellow | Air taxiway edge |
| Seaplane dock (AGA 5.3) | Equilateral triangle, 2.4 m per side | Red and white side markings on the dock | The dock |
| Heliport H (AGA 5.5.3) | Capital H centred in the TLOF | White; hospital heliport: red H centred in a white cross | TLOF |
| Arrester cable (AGA 9.2.2) | Circles painted across the runway; darkness: lighted sign with a circle beside it | Yellow | Cable location |
- Unprepared aerodrome: boundary markers not required if the movement area is already clearly delineated from the surrounding ground.
- Heliport H orientation: magnetic north; true north inside an area of compass unreliability.
Civil aeroplane operations while arrester cable deployed across runway (AGA 9.2.3):
| Location | Operations |
|---|---|
| Civil airport | Not permitted |
| Military aerodrome | May be permitted |
Trap: yellow circles mark the arrester cable location, not permission to operate over it.
References
- TC AIM AGA 5.1
- TC AIM AGA 5.2
- TC AIM AGA 5.3
- TC AIM AGA 5.5.3
- TC AIM AGA 9.2.2
- TC AIM AGA 9.2.3