T-45A UJPT, E2-C2, ADV, & IUT Eng-19
Flight Instruments
(c) Roll, pitch, and heading
information from SSA via
SAHRS/NGS
(d) ILS signal strength controls
GS and LOC flag operation
(e) ADI fail switch on navigation
training (NAVTRNG) panel in
fwd cockpit used to fail aft
ADI for training purposes
C.
Horizontal situation indicator (HSI)
Sg 3 , fr 5
1.
Location: centered on both instrument
panels below ADI
2.
Function: displays heading, radial/
magnetic course, course deviation, range,
TO/FROM indication, and glideslope and
localizer azimuth displays as selected by
HORIZONTAL SITUATIONAL
TACAN, VOR, and ILS systems through
INDICATOR (HSI)
following indicators
a.
Heading marker bug
b.
Course window
c.
Range window displays TACAN
distance to 399.9 nm
d.
Course deviation indicator (CDI)
indicates deviation from selected
course and provides intercept angle
e.
No. 1 and No. 2 bearing pointers on
periphery of HSI indicate bearing/
radial of VOR (green) and TACAN
(white) respectively
f.
GS pointer indicates glideslope
information when ILS signal received
(8-03) Original
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