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400
500
600
8000
RA2
IRS2
ADC2
DCP2
TERM
MSG
FMS1
TRU
NO FLIGHT PLAN
TCAS
OFF
29.85 IN
2400M
GS
RA
LNV1
LOC 1
DR FLC
ALTS
FMS1
25
DTK 279
.3
HOKKE
NM
4
4
2
2
1
1
25
3.6
2500M
250
N
33
30
W
24
6
3
7
12000
VOR2
260
220
200
240
280
10
10
20
300
200
900
100
000
8000
TRU
NO FLIGHT PLAN
TRAFFIC
2400M
GS
RA
4
4
2
2
1
1
2.8
2500M
N
33
30
W
24
E
6
3
4
200
180
160
140
30
65
40
300
200
100
000
8000
TRU
NO FLIGHT PLAN
TRAFFIC
2400M
GS
RA
4
4
2
2
1
1
14
2500M
N
33
30
W
24
E
6
3
5
NORMAL ATTITUDE DISPLAY
UNUSUAL PITCH ATTITUDE UNUSUAL BANK ANGLE ATTITUDE
3
Roll Pointer
Slip/Skid
Indicator
Roll Scale Roll Pointer
Slip/Skid
Indicator
Pitch
Scale
FLIGHT INSTRUMENTS
11-22 For Training Purposes Only
May 03
P I LOT T R A I N I N G GU I D E
Airspeed Displays
IAS Scale
The indicated airspeed scale is a vertical “moving tape” display. The IAS scale
contains a line marking every 5 and 10 knots and a numeric label every 20 knots. If
airspeed data becomes invalid, the scale is replaced with a red IAS annunciation.
IAS Pointer
This stationary triangle is displayed at the center of the IAS window. The current
indicated airspeed is the IAS scale indication at the pointer.
IAS Trend Vector
The IAS Trend Vector is a magenta line that extends from the IAS pointer to predicted
future airspeed. The head of the trend vector aligns with the IAS scale to predict what
the airspeed will be in 10 seconds (if present acceleration is maintained). The vector
extends up as airspeed increases and down as airspeed decreases. The trend vector is
not displayed when the airplane is on the ground.
Mach Display
The current indicated Mach speed automatically displays below the airspeed scale
with an M label as Mach increases above 0.450. This display is removed when Mach
decreases below 0.400. Mach display changes in 0.002 increments.
Overspeed Cue
The overspeed reference is shown de-emphasized (red triple-width vertical bar) on the
airspeed scale ascending from VMO/MMO to the top of the airspeed tape. The deemphasized
overspeed reference changes to an emphasized overspeed reference (red
and gray checkerboard symbol) when the airspeed is two knots or greater into the
VMO/MMO region. The de-emphasized overspeed reference also changes to an
emphasized overspeed reference when the airspeed trend has been two knots or greater
into the VMO/MMO region for five seconds or more.
Low Speed Cue
The Low Speed Cue indicates the aircraft’s impending stall speed and is generated by
Angle-of-Attack information from the Auxiliary Angle-of-Attack vane. The Low Speed
Cue indication is shown de-emphasized (red triple-width vertical bar) on the airspeed
scale descending from impending stall speed to the bottom of the airspeed tape. The deemphasized
cue changes to an emphasized cue (red and gray checkerboard symbol)
when airspeed is two knots or greater into the impending stall speed region. The deemphasized
cue also changes to an emphasized cue when the airspeed trend has been
two knots or greater into the impending stall speed region for five seconds or more.
FLIGHT INSTRUMENTS
For Training Purposes Only
May 03
11-23
P I LOT T R A I N I N G GU I D E
PFD Airspeed Display and Underspeed / Overspeed Cues
Figure 11-12
Speed Reference (Bug) Field
This line display shows a selected speed reference (bug) value that can be controlled
using either Air Data Reference Panel (ADRP). The SPEED REFS knob and SEL
button are used to sequentially select one of four available bugs, 1, R, 2, or T,
corresponding to (V1, VR, V2, or VT) for display in this field.
P604_11_034
260
280
300
320
240
M.476
EMPHASIZED
OVERSPEED CUE
180
160
140
120
200
M.466
EMPHASIZED
LOW SPEED CUE
260
280
300
320
240
　
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