
INSTRUMENTS AND RECORDERS, AIR DATA SYSTEM
Description
Aircraft Operations Manual
12/1.1
O
PAGE
13
Apr 01/15
Push TEST knob.
Slews the VS bug when rotated and initiates
VNI self test when pushed and released.
Test
−
VS pointer goes to 6000 FPM up.
−
VS flag (red) appears.
−
VS bug goes 6000 FPM down.
−
OFFSET annunciator sequences from black
to BEFORE to black AFTER to black.
−
ARM anninciator sequences from black to
ANG ARM to black to VS ARM to black.
−
SETUP and DISTANCE annunciators
sequentially show:
−
SETUP display indicates 888.8.8.
−
DISTANCE display indicates 18.8.
−
VSR display indicates 8.8.
−
Back to normal.
A26576
Ñ
A
VERTICAL NAVIGATION INDICATOR
A
Vertical speed pointer.
Scaled in fpm x 1000.
ANNUNCIATOR
UNITS
OFFSET
NM
STA, EL
FT
ALT
FT
ANG
DEG
TO TRK
NM
TO ALT
NM
Warning flag (red).
Flag is indicated if.
−
The test button is pressed.
−
The VNAV indicator fails.
−
Loss of data input.
Vertical Speed (VS) bug.
Indicates selected VS when the FD/AP is in VS
mode, and initial VS selected with the PUSH
TST knob when not in the VS hold mode.
Fig. 9 Vertical Navigation, VNAV, indicator