Approach Questions and Answers
How do I check to
see what I entered
for an inbound
course(OBS/HLD)?
There are two ways to check this. One
way is to press FPL to enter flight plan
mode. Turn the Small knob until the
active leg is displayed (denoted by two
asterisks on the leg). The displayed
desired-track is what was entered as the
“OBS” course when leg sequencing is
suspended.
The second way is to press
DIRECT-TO twice as if you are going
to enter the inbound course again. The
displayed value will be whatever you
last selected.
What do I do if on a
procedure turn or
holding pattern entry
I forgot to set a new
OBS/HLD inbound
course after first
crossing the
waypoint and the
flightplansequences
to the next waypoint
assoon as Ire-enable
sequencing?
1. Press OBS/HLD to disable
sequencing.
2. Press FPL. Then, turn the Small
knob to show the waypoint you want
active on the TO side.
3. Press ENT twice to select the desired
leg.
4. Remember to press OBS/HLD to
re-enable sequencing when established
inbound.
Why do I sometimes
see several degrees
difference in what
the Apollo NMS
shows as the course
for a leg and what is
on the published
approach chart.
There are two main reasons: station
declination and airway definition. The
VOR station magnetic declination
setting may not be current and will
provide slightly differing readings
compared to your actual magnetic
course. Airways are defined by
constant bearing To or From VOR
stations while GPS navigation is based
on the great circle route between the
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Approach Questions and Answers Operations
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