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THIS IS AN UNCONTROLLED DOCUMENT.
THIS ELECTRONIC DOCUMENT MAY HAVE BEEN SUPERCEDED.
THE MOST CURRENT DOCUMENT INFORMATION IS AVAILABLE
FROM YOUR BELL HELICOPTER TEXTRON REPRESENTATIVE.
PRODUCT DATA JANUARY 2003
The HSI provides a display of the gyro
stabilized magnetic heading of the
helicopter. When connected to
optional
VOR / ILS, ADF, and GPS navigation
receivers this instrument
combines the
functions of multiple indicators to display
bearing to / from, selected course, and
course / localizer / glideslope deviation.
The King KPI-552B is driven by the remote
mounted King KCS-305 Gyrocompass
System, located in the aft avionics
compartment. Two adjustment knobs are
used to set
desired heading and course.
Warning flags (NAV, GS, & HDG) appear
to indicate unreliable navigation signal or
gyro failure.
HORIZONTAL SITUATION INDICATOR (HSI)
NAVIGATION INDICATORS
The vertical speed indicator is a standard
3-inch instrument which shows the rate of
climb or descent by sensing the rate of
atmospheric pressure change. Information
is shown in feet per minute (fpm) on a scale
from
zero to plus or minus 3500 fpm. The
indicator incorporates a
sensitive
accelerometer to provide instantaneous
vertical speed indication.
VERTICAL SPEED
The standard 2-inch turn and slip indicator
is a 28 Volt DC powered self contained
gyroscopic instrument which has an
indicating needle to show the rate of turn
of the helicopter, along with fluid dampened
ball which shows turn coordination [trim].
TURN & SLIP
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