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The glideslope deviation is displayed when the primary navigation source is LOC, the glideslope deviation is valid, and the airplane is not in Back Course.
The glideslope Deviation scale is not displayed in TO or GA mode or when the Radio Altitude is less than 50 ft.
Volume 2 Flight Crew Operating Manual Rev 7, Dec 01, 2005
Glideslope Deviation (Cont’d)
Vertical Deviation Scale
Glideslope
Deviation
GF1110_087a
Pointers
VNAV Vertical Deviation
The VNAV vertical deviation is displayed to the left of the vertical scale when the vertical captured mode is VPTH. A limited pointer deviation is shown as a half pointer in view at a position corresponding to ±2.5 dots. Also the VNAV vertical deviation is shown when a Vertical Track Alert (VTA) is annunciated on the PFD’s with the associated double C-chord.
When the FMS approach sensitivity is set to normal, the ±2 dots scale corresponds to the vertical scale factor provided in feet. When the vertical scale factor is not provided, the ±2 dots scale corresponds to ±500 ft. When the FMS approach sensitivity is not set, the normal sensitivity is used.
Lateral Deviation Excessive Indication
The lateral deviation excessive annunciation is indicated by the lateral deviation scale flashing.
CAT 2 ILS Deviation Margin
The CAT 2 ILS deviation margin consists of 2 vertical dashed lines (lateral deviation limits of approximately 1/3 of a dot) and 2 horizontal dashed lines (vertical deviation limits of approximately one dot). When both limits are displayed, the shape of the CAT 2 ILS margin is a square. It is displayed in relation to the FPV. The CAT 2 ILS deviation is displayed when:
.
CAT 2 mode is indicated, and
.
The DH is set to a value lower than 200 ft, and
.
The Radio Altitude is less than 300 ft but greater than DH.
When the LOC lateral deviation is not valid, the lateral deviation limits are removed and the vertical deviation limits are laterally centered on the FPV.
When the glideslope deviation is not valid, the vertical deviation limits are removed and the lateral deviation limits are vertically centered on the FPV.
Rev 7, Dec 01, 2005 Flight Crew Operating Manual Volume 2
FLIGHT INSTRUMENTS
HUD SYMBOLOGY (CONT'D)
CAT 2 ILS Deviation Margin (Cont’d)
CA 2 AnnunciationT
GF1110_088a
Scale
Lateral Deviation Scale
The lateral deviation scale is a conventional CDI scale that rotates with the course pointer according to the course selected/desired track.
LOC Lateral Deviation
The LOC lateral deviation scale is a conventional CDI scale. The LOC lateral deviation is displayed when the primary navigation source is LOC and a valid LOC frequency is tuned. The LOC CDI is not displayed in TO or GA modes.
FMS Lateral Deviation
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