Saab 340B, Operation Manual

Page: 170 / 670

AUTOFLIGHT, CAT I
Operation
Aircraft Operations Manual
3.2
S
PAGE 12
Apr 01/15
CONDITIONS NORMAL PROCEDURES
(Cont’d)
3. NAV SOURCE SELECTOR push button PRESS LEFT/ . . . . . . . . . . .
RIGHT
4. MSP NAV button PRESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
− When NAV mode is selected before capture conditions are met, the system
automatically goes into HDG mode whilst NAV is armed.
− Check HDG green and VOR white on EADI.
5. HDG KNOB SET VOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INTERCEPT HDG
6. At VOR ”CAP”, VOR green on EADI CHECK . . . . . . . . . . . . . .
When overflying a VOR station (cone of confusion) the FD/AP will revert to dead
reckoning and hold selected course (CRS 1/CRS 2). This is annunciated on EADI
with a yellow DR.
NOTE
2.14 NAV − LOC
MODE
The back course is automatically corrected for by EFIS and annunciated by a yel-
low B/C replacing the GS indication on the EADI/EHSI.
With the CRS selector set for the normal localizer inbound course the LOC sym-
bols on the EADI/EHSI are not reversed when flying:
− Inbound on the back course.
− Outbound on the localizer inbound course.
CAUTION
The standby VOR/ILS indicator will reserve the Localizer indication when flying
back course.
CAUTION
If the course pointer is set to a wrong inbound course prior established or if the
pointer is moved away from a correct inbound course after established on the
localizer, the aircraft can or will deviate from the localizer.
SET CORRECT INBOUND COURSE.
WARNING
The purpose of this mode is to lock the FD/AP to the localizer only at airports
where there is no glideslope or the glideslope beam is not suitable for auto-
matic approach. Glideslope deviation information is presented in the EADI.
1. NAV frequency selector SET ILS . . . . . . . . . . . . . . . . . . . . . . . . . .
FREQUENCY
(Cont’d)