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Low Speed Awareness (LSA) Thermometer
The LSA thermometer extends from the bottom of the airspeed tape to the calculated stall warning
speed (stick shacker initialization). The LSA thermometer is displayed when the airspeed tape is
displayed and the main gear is in weight off wheels condition.
Stall Annunciation
The stall annunciation is displayed below the airplane reference symbol when the stick pusher is
activated or a pusher command is provided by the stall protection system.
Ground Speed Readout
The ground speed readout is based on the FMS ground speed. It has a range of 30 kt thorough
900 kt inclusively at 1 knot increment.
The ground speed readout is displayed in place of the Mach readout below the airspeed tape.
Ground speed is displayed when:
· Weight off wheel condition, and
· Flight Director approach mode is set.
FLIGHT INSTRUMENTS
Flight Crew Operating Manual Rev 7, Dec 01, 2005
CSP 700−5000−6
Volume 2
11−10−80
HUD SYMBOLOGY (CONT'D)
Ground Speed Readout (Cont’d)
Low Speed Awareness
Thermometer
STALL
Annunciation
Ground Speed
Readout
GF1110_081a
Vertical Speed Readout
The vertical speed readout is located below the altitude tape. The digital readout is displayed when
the main landing gear is weightoffwheel.
The range of the displayed value is ±9900 fpm. For vertical speed between ±1000 fpm the
information is rounded to the nearest 50 fpm. For vertical speed greater than ±1000 fpm, the
information is rounded to the nearest 100 fpm.
Vertical Speed Target
The vertical speed target is located above the vertical speed readout when the FD vertical
captured submode is VS or VPTH. The vertical speed target readout is labeled VS or VN,
according to the FD vertical captured mode.
The vertical speed target readout is limited to the range of −8000 fpm through 6000 fpm. The sign
is replaced by an arrow pointing up () for a positive value and down (¯) for a negative value.
When the vertical speed target is within ±1000 fpm, the indication is rounded to the nearest 50
fpm. When the vertical speed target is exceeding ±1000 fpm, the indication is rounded to the
nearest 100 fpm.
BARO Minimum Readout
The BARO minimum indication is displayed in 10 foot increments at the left of the BARO set
readout and labeled BARO. It is displayed when the selected MDA is valid and greater than 20
feet.
FLIGHT INSTRUMENTS
Rev 7, Dec 01, 2005 Flight Crew Operating Manual
CSP 700−5000−6
Volume 2
11−10−81
HUD SYMBOLOGY (CONT'D)
MDA Bug
An MDA bug is displayed next to the altitude tape according to the MDA information. It is displayed
when the selected MDA is valid and greater than 20 feet.
BARO
Minimum
Vertical Speed
Readout
Vertical
Speed Target
MDA Bug
10
GF1110_082a
Conformal Heading Scale
The scale is marked above the horizon line in 5 degree increments and can display a range of
approximately 25 degrees. The heading mode is either Magnetic or True as selected via the FMS
and indicated on the HUD.
Conformal Heading Index
The conformal heading index is located above the horizon line to indicate the airplane heading in
reference to the external scene.
To avoid clutter with the airplane reference symbol, it is only displayed when the pitch angle
exceeds ±2 degrees and remains greater than ±1.5 degrees.
Conformal Selected Heading Bug
A selected heading bug is displayed on the horizon line and, when read in conjunction with the
conformal heading scale, corresponds to selected heading.
Conformal Drift Bug
The drift bug is displayed below the conformal horizon line when the FPV is more than 5 degrees
away from the horizon line and remains in view until the FPV returns within 4.5 degree of the
conformal heading line.
If the FPV is near the horizon line, drift can be easily discerned by the FPV lateral displacement
from the center of the conformal heading index.
FLIGHT INSTRUMENTS
Flight Crew Operating Manual Rev 7, Dec 01, 2005
CSP 700−5000−6
Volume 2
11−10−82
HUD SYMBOLOGY (CONT'D)
Conformal Drift Bug (Cont’d)
Conformal
Heading
Index
Conformal
Heading
Scale
Conformal
Selected
Heading Bug
Conformal
Drift Bug
415 00
405 00
410 00
SPD
F250
280
260
253
240
220
410 00
GF1110_083a
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