BendixKing SG 465 System EFS 50 - Manual (Page 151)

Operating Instructions
5.4 Issued 4/95 SW 06/07/08/11
◗ ADF APPROACH
After selecting ADF mode and
tuning ADF #1 receiver to the
desired NDB, set Bearing pointer
#1 to ADF which will be used for
primary navigation. Using CRS
control, select desired course TO
or FROM the NDB. The course
deviation bar on the EHSI now
provides left-right guidance in fly-
ing the selected course as it
would in flying a VOR course.
This eliminates the mental calcu-
lations required while tracking an
NDB course in the conventional
manner. NDB station passage is
indicated by the TO-FROM indi-
cator and Bearing pointer rever-
sal. The ADF may become
invalid during station passage, a
RED X will be displayed in place
of the deviation scale and D-Bar.
Note: ADF D-Bar presentation
may not be available if the
ADF does not provide a suit-
able flag output.
◗ LNAV (RNAV) APPROACH
After selecting LNAV mode and
the desired waypoint, set Bearing
Pointer #1 to the desired #1
bearing sensor. If the installed
LNAV supports selected course
from the EFS 50, use the CRS
knob to select desired course TO
or FROM the waypoint. The
course deviation bar on the EHSI
now provides guidance in flying
the selected course. Waypoint
passage is indicated by the TO-
FROM indicator and waypoint
Bearing pointer reversal.
Once the external LNAV system
transmits to the EFS 50 that it is
in an approach mode, the cyan
colors turn green on the EHSI
and system sensitivity increases
to 1.25 NM left or right for full-
scale CDI deflection. Cross-side
annunciation remains yellow, but
the increased sensitivity is imple-
mented if the cross-side LNAV is
in Approach Approved mode.
Note: Depending on the type of
LNAV installed, the Lateral
Deviation Scale may be differ-
ent and may only support DTK.
◗ VOR APPROACH
After selecting NAV mode and
tuning the VOR receiver to the
desired frequency, set Bearing
Pointer #1 to VOR #1. Using
CRS control, select desired
course TO or FROM the VOR
station. The course deviation bar
on the EHSI now provides guid-
ance in flying the selected
course. VOR passage is indicat-
ed by the TO-FROM indicator
and Bearing pointer reversal.
◗ DECISION HEIGHT
SELECTION
Pull the DH set knob on the
CP 467 to activate the DH set
display on the EADI. Adjust the
DH set knob to select the desired
decision height for the particular
approach. Push the DH set knob
in, the select DH will be declut-
tered until the radar altimeter
becomes valid at or below 2500
feet.