Dhansham - Pilot's Notebook : PDF - Primary Flight Display

The G1000 attitude indicator is shown on the upper center of the PFD. The attitude indication data is provided by the Attitude and Heading Reference System (AHRS). The G1000 attitude indicator provides a horizon line that is the full width of the GDU display.

The roll index scale is conventional with 10° graduations to 30° and then 15° graduations to 60° of roll. The roll pointer is slaved to the airplane symbol. The pitch index scale is graduated in 5° increments with every 10° of pitch labeled. If pitch limits are exceeded in either the nose-up or nose-down direction, red warning chevrons will appear on the indicator to point the way back to level flight. A small white trapezoid located below the roll pointer moves laterally left and right to provide the slip-skid information previously supplied by the skid indicator ball. The trapezoid should be centered below the roll pointer for coordinated turns. The standby (vacuum) attitude indicator is found on the lower center instrument panel.

AIRSPEED INDICATOR

The G1000 vertical tape airspeed indicator is shown along the upper left side of the PFD. The airspeed indication data is provided by the air data computer unit. Colored bands are provided to indicate the maximum speed, high cruise speed caution range, normal operating range, full wing flap operating range and low airspeed awareness band.

Calculated true airspeed is displayed in a window at the bottom edge of the airspeed tape. The standby (pneumatic) airspeed indicator is found on the lower center instrument panel. Colored arcs are provided to indicate the maximum speed, high cruise speed caution range, normal operating range, full wing flap operating range and low airspeed awareness band.

ALTIMETER

The primary altitude indicator (altimeter) is found along the right side of the attitude indicator on the PFD. The altitude indication data is provided by the air data computer unit. The local barometric pressure is set using the BARO knob on the GDU displays.

A cyan selectable altitude reference pointer, bug, is displayed on the altimeter tape and is set using the ALT SEL knob on the GDU displays.

The altitude bug set-point is shown in a window at the top edge of the altimeter. The standby (aneroid) sensitive altimeter is found on the lower center instrument panel.

HORIZONTAL SITUATION INDICATOR

The Horizontal Situation Indicator (HSI) is found along the lower center area of the PFD. The heading indication data is provided by the AHRS and magnetometer units. The HSI combines a stabilized magnetic

direction indicator (compass card) with selectable navigation deviation indicators for GPS or VHF navigation. The HSI is conventional in appearance and operation.

Magnetic heading is shown numerically in a window centered above the heading index (lubber line) at the top of the HSI. Reference index marks are provided at 45° intervals around the compass card. A

circular segment scale below the heading window at the top of the HSI shows half and standard rates of turn based on the length of the magenta turn vector.

The cyan HSI heading reference pointer, bug, is set using the HDG knob on the GDU display. The selected heading is shown digitally in a window above the upper left 45° index mark. The selected heading will provide control input to the autopilot, if installed, when engaged in HDG mode.

The CDI navigation source shown on the HSI is set using the CDI softkey to select from GPS, NAV 1 or NAV 2 inputs. The course reference pointer is set using the CRS knob on the GDU display. The selected course is shown digitally in a window above the upper right 45° index mark. The selected navigation source will provide control input to the autopilot, if installed, when engaged in NAV, APR or BC mode and it is receiving a navigation signal from the selected GPS or VHF NAV radios.

VERTICAL SPEED INDICATOR

The Vertical Speed Indicator (VSI) tape is found on the right side of the altimeter display along the upper right side of the PFD. The vertical speed pointer moves up and down the fixed VSI scale and shows the rate of climb or descent in digits inside the pointer. The VSI tape has a notch on the right edge at the 0 feet/min index for reference. Rate of descent is shown with a negative sign in front of the digits. Vertical speed must exceed 100 feet/min in climb or descent before digits will appear in the VSI pointer.