Chapter 4 – Principles of Operation
SKY497 Pilot’s Guide
4-3
TA Zones
0.2 nmi
+600 ft
–600 ft
This area or 20 seconds*
0.55 nmi
+800 ft
–800 ft
This area or 30 seconds*
*
**15 seconds for non-altitude reporting intruder aircraft
*20 seconds for non-altitude reporting intruder aircraft
Not to scale
Intruder aircraft
GL
If own
aircraft
is below
1,700 ft
AGL
If own
aircraft
is below
400 ft
AGL
2,000
feet
Ground
intruders
below
380 ft
AGL are
filtered
out
TA zone when
own aircraft is
below 2,000 ft
(sensitivity level A)
TA zone when
own aircraft is
above 2,000 ft
(sensitivity level B)
SKY497 audio
is inhibited
Figure 4-1. TA Zones If Your Aircraft Has a Radio Altimeter
Figure 4-2. TA Zones If Your Aircraft Has No Radio Altimeter,
But Does Have a Retractable Landing Gear
0.2 nmi
+600 ft
–600 ft
This area or 20 seconds*
0.55 nmi
+800 ft
–800 ft
This area or 30 seconds*
*
**15 seconds for non-altitude reporting intruder aircraft
*20 seconds for non-altitude reporting intruder aircraft
Not to scale
Intruder aircraft
GL
TA zone
when landing gear is up
(sensitivity level B)
TA zone
when landing gear is down
(sensitivity level A)
SKY497 audio
inhibited when landing
gear is down
Содержание SKY497
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