T-45A UJPT, E2-C2, ADV, & IUT Eng-19
Flight Instruments
(2) Heading (HDG) set knob used to
set compass heading in DG mode
only (variable slew rate while
pointer is under arc)
(3) Latitude (LAT) control used to set
operating latitude into SAHRS/
NGS (DG and SLV modes only)
d.
SAHRS/NGS subsystem interfaces
(1) Allows magnetic compass
information to be gyro-stabilized
by interface between remote/
induction compass transmitter
and SSA
(2) Electrical system
(a) 115 VAC essential bus
(b) 28 VDC essential services
bus
NOTE: The SAHRS/NGS
mode control panel remains
operational with loss of the
5.
Summary:
In addition, the SAHRS/NGS system
provides heading, pitch, and roll
information to the airborne data recorder
(ADR) and display electronic unit of the
head-up display (HUD) system. The
system also provides roll information to the
yaw damper system to compute roll rate,
and heading information to the VOR.
(8-03) Original
Page 19-11
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