T-45A UJPT, E2-C2, ADV, & IUT Eng-19
Flight Instruments
c.
Controls/switches/indicators:
controlled by SAHRS mode selector
switch
4.
SAHRS mode control panel (NGS uses the
Sg 3, fr 3
same SAHRS mode control panel)
a.
Location: center instrument panel
below HSI, fwd cockpit only
b.
Function: panel contains controls and
circuitry that operate SAHRS/NGS
SAHRS MODE CONTROL PANEL
c.
Controls/switches/indicators
(FWD COCKPIT ONLY)
(1) Mode selector used to select
desired mode of operation or OFF
(a) SLV (slaved): SSA gyro-
stabilized magnetic heading
as sensed by remote/
induction compass
(b) DG (directional gyro): head-
ing referenced from initial
pilot-entered gyro setting and
not affected by strong mag-
netic fields (e.g., polar re-
gions)
(c) COMP: emergency mode--
heading as sensed by
remote/induction compass
transmitter without SSA gyro-
stabilization input
NOTE: Loss of pitch and roll
on ADI, only unstabilized
heading is displayed.
Page 19-10
(8-03) Original
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