5.1.6. EXAMPLE APPROACH: RADAR VECTORS
For this example we will use the same approach that was used in the
previous section except this approach will be conducted with the help
of radar vectors from approach control. The aircraft will be assumed
to be arriving from the West, although this does not change the way
the approach will be flown using the KLN 89B.
1.
The approach has been selected and entered into the flight plan
and the aircraft is going direct to KCVN (Clovis, New Mexico
Municipal) as described in
2.
As soon as ATC mentions radar vectors you should immediately
start to think of the OBS mode. Once given radar vectors,
change the active waypoint to TXO and select the OBS mode.
Note that it is not important what order these events take place.
It is just as effective to change to OBS mode and then change
the active waypoint as it is to change the active waypoint and
then switch to OBS mode.
3.
Next, change the selected course on the CDI or HSI to the final
approach course. For this exam-
ple, the inbound course is 241°.
It is now possible to watch your
progress on the NAV 4 page and
anticipate when you will be given
new headings to fly (figure 5-18).
4.
Once established on the inbound course, you will need to change
back to the Leg mode to allow for proper approach operation and
automatic leg sequencing. For best performance, the change
back to Leg mode should be made before the aircraft is 2 NM
from the FAF.
NOTE: It is mandatory that the unit be in LEG mode with the FAF as
the active waypoint before crossing the FAF to activate the approach
active mode and change to ±0.3 NM scale factor. The CDI scale fac-
tor changes from ±1.0 NM to ±0.3 NM over the two miles to the FAF.
Delaying the switch from OBS to Leg mode compresses the scale
factor change. This will make the transition more abrupt. If the switch
from OBS to Leg is delayed too long it will not be possible for the
KLN 89B to change to the approach active mode.
5.
The rest of this approach would be flown using the same steps
as presented in
Approaches and SID/STARs
5-18
Approaches and SID/STARs
Chapter 5
APT VOR NDB INT USR ACT NAV FPL CAL SET OTH
î.ïnm|
î.ïnm|
TXOf |
TXOf |
241|
241|
>118kt|
>118kt|5
5
"
"
%
%
TXO
TXO
Figure 5-18
Содержание Bendix/King KLN 89
Страница 1: ...Pilot s Guide ORS 01 02 KLN 89 KLN 89B Bendix King GPS Navigation System A ...
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