Pitot-Static System And Instruments; Air Data Computer; Airspeed Indicators; Vertical Speed Indicators - Kodiak 100 Series Information Manual

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S e c t i o n 7
AIRPLANE & SYSTEMS DESCRIPTIONS

7-23 PITOT-STATIC SYSTEM AND INSTRUMENTS

The pitot-static system supplies dynamic (ram) pressure to the airspeed
indicator and static pressure to the airspeed indicator, altimeter and vertical
speed indicator. The system contains dual heated pitot-static tubes mounted
on the leading edge of each wing, an airspeed pressure switch located
forward of the instrument panel, two GDC 74A Air Data Computers, and the
associated plumbing required to connect the instruments to their sources.
The pitot-static heat system consists of a heating element in each pitot-static
tube, two two-position toggle switches, labeled PITOT HEAT (L&R). The
switches are mounted on the lower portion of the instrument panel in the
right switch panel. The pitot/static heat systems are protected by two circuit
breakers labeled LEFT PITOT HEAT and RIGHT PITOT HEAT. When the
pitot-static heat is turned on, the element in the pitot-static tube is heated
electrically to allow proper operation in potential and actual icing conditions.
An airspeed pressure switch is installed in the pitot system and is used to
actuate the flight hobbs meter and the flap/trim compensation unit.

AIR DATA COMPUTER

The GDC 74A is the Air Data Computer (ADC) for the Garmin G1000 system
and receives the standard inputs from the pitot-static system as well as
outside air temperature (OAT) inputs. The GDC 74A allows the system to
automatically perform most E6B calculations including true airspeed, winds
aloft and density altitude.

AIRSPEED INDICATORS

Airspeed information is provided within the Garmin G1000 Primary Flight
Displays. The airspeed information is displayed in digital format as well as
an electronic airspeed "tape." For more information concerning the airspeed
indication through the Garmin G1000 system, refer to the Garmin G1000
Cockpit Reference Guide (190-00645-XX) for the KODIAK 100.
A backup airspeed indicator is also standard equipment on the KODIAK. The
backup airspeed indicator is of standard configuration and is calibrated in
knots. Limitation and range markings (in KIAS) include the white arc – full flap
operating range of 47 to 108 knots, green arc – normal operating range of 68
to 182 knots, and a red line – maximum operating speed of 182 knots.

VERTICAL SPEED INDICATORS

Vertical speed information is provided within the Garmin G1000 Primary Flight
Displays. The vertical speed information is displayed in digital format as well
as an electronic "tape" format. The vertical speed indicator needles have
an operating range of +2000 fpm and -2000 fpm. When the aircraft vertical
speed is greater than that range, the needle will peg at the 2000 fpm mark but
continue to show a digital readout of the vertical speed within the needle.
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D O N OT U S E FO R FL I G H T O PE R AT I O N S
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