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Initial Climb
At a Radio Altitude of 50 feet, the HGS automatically changes from TO
Mode to PRI Mode. “PRI” shows on the ACT line of the HCP.
Changes occur in the Combiner display after takeoff:
• Symbology for Flight Path and Flight Path Acceleration show. With the
power set and the aircraft at the selected airspeed, the left-side pilot can
pitch the airplane up to the Flight Path Acceleration symbol for a
constant airspeed.
• Symbology for Radio Altitude shows. If the FD lateral or vertical
captured mode is TO, the HSI does not show on the Combiner display.
• The Flight Path symbol and the Zero-Degree Pitch Line are “ghosted”
(dashed lines replace solid lines) when the view on the Combiner
display is compressed and becomes non-conformal.
Figure 5-3 shows:
• Pitch attitude is about 14°
• Climb angle is about 8°
• “Ghosted” Flight Path symbol overlays Guidance Cue symbol
• Zero-Degree Pitch Line is “ghosted”
• Wind is straight off nose of aircraft at 8 knots
• Selected altitude is 10,000 feet
• Baro Altitude is 280 feet
• Flight Path Acceleration symbol shows that speed increases
• Ground speed is 144 knots
• Selected airspeed is 180 knots
• Airspeed is 155 knots
• HSI does not show because the Flight-Director captured lateral mode is
TO
• Radio Altitude is 60 feet during climb at 2600 FPM on heading of
278°.
HGS® Pilot Guide for the Bombardier CRJ 700 Model 4200
9701-1153 Rev A November 2002 5-7
Figure 5-3:
Initial Climb
HGS® Pilot Guide for the Bombardier CRJ 700 Model 4200
5-8 November 2002 9701-1153 Rev A
Climbing Turn
During a climbing turn, the pilot keeps the FCS-Derived Guidance Cue
centered in the Flight Path symbol as necessary.
Figure 5-4 shows:
• Aircraft is banked 20° in right-coordinated climbing turn
• Aircraft turns through heading of 310° to rollout on 330° heading
• VOR is tuned and course is set to intercept 330° radial TO station
• Selected altitude at 10,000 feet
• Altitude at 2,900 feet
• Selected airspeed at 230 knots
• Airspeed at 225 knots.
Figure 5-4:
Climbing Turn
HGS® Pilot Guide for the Bombardier CRJ 700 Model 4200
9701-1153 Rev A November 2002 5-9
Level Flight
To maintain straight and level flight at the selected airspeed, keep the Flight
Path symbol on the Zero-Degree Pitch Line and the Flight Path
Acceleration symbol on the Flight Path wing.
Figure 5-5 shows:
• Aircraft is level at 22,000 feet and 305 knots.
• Wind arrow indicates a 21 knot, right-quartering headwind resulting in
a ground speed of 288 knots.
• Autopilot is engaged with course set at 250° FROM the VOR and in
MACH hold.
Figure 5-5:
Level Flight
HGS® Pilot Guide for the Bombardier CRJ 700 Model 4200
5-10 November 2002 9701-1153 Rev A
Level Turn
To maintain the selected altitude in a level turn, keep the Flight Path symbol
centered on the Zero-Degree Pitch Line. In a 30°-bank level turn, the
“wing” of the Flight Path symbol overlays the Zero-Degree Pitch Line.
Figure 5-6 shows:
• Aircraft is banked 30° in level-left coordinated turn
• Aircraft turns through heading of 280° toward selected heading of 235°
to intercept 250° radial FROM VOR station
• Selected speed at 230 knots
• Airspeed at 235 knots; thus, Speed Error Tape is above Flight Path
symbol.
Figure 5-6:
Level Turn
HGS® Pilot Guide for the Bombardier CRJ 700 Model 4200
9701-1153 Rev A November 2002 5-11
Descent
During a descent, the pilot continues to keep the Guidance Cue centered in
the Flight Path symbol as necessary.
Figure 5-7 shows:
• Selected altitude is 15,000 feet and the aircraft is descending through
19,840 feet
• Selected airspeed is 290 knots
• Airspeed is 297 knots, thus the Speed Error Tape is above Flight Path
symbol
• Aircraft is decelerating, which is shown by Airspeed Trend Vector and
Flight Path Acceleration symbols
• Left-quartering tailwind at 18 knots causes aircraft to fly in slight leftcrab
angle for 250° VOR radial. Crab angle causes lateral displacement
of Flight Path symbol relative to Aircraft Reference symbol
Figure 5-7:
Descent
HGS® Pilot Guide for the Bombardier CRJ 700 Model 4200
5-12 November 2002 9701-1153 Rev A
Descending Turn
Figure 5-8 shows:
• Aircraft’s pitch attitude and descent angle are about -5° in a 30° right
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