T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
3.
Ground power system
Sg 5, fr 23
External Electrical
a.
External 28 VDC power may be connected to
Connections
aircraft for battery charging and ground
maintenance
Sg 5, fr 24
b.
Ground power panel has external power
Ground Power Panel
monitor sw and ground power sw #1 and #2
Sg 5, fr 35
C. Electrical system aircraft interfaces 1.4.4.2
Electrical Load
Distribution -
1.
28 VDC generator bus: equipment powered
Part 1 of 3
a.
Cockpit light
Fig 2: Electrical Load
Distribution
b.
LDN/TAXI light
c.
ANTI-COLL/STROBE lights
d.
Right Hand-Multifunction Display (MFD)
Sg 5, fr 35
Electrical Load
2.
28 VDC essential services bus: equipment powered
Distribution -
Part 2 of 3
a.
MAP lights
b.
EMERG lighting
c.
NAV lights - TAIL
d.
Left Hand-Multifunction Display (MFD)
e.
TACAN
Sg 5, fr 35
Electrical Load
3.
115 VAC essential bus: equipment powered
Distribution -
Part 3 of 3
a.
GPS/Inertial Navigation Assembly (GINA)
b.
Warning/caution/advisory dimming (14/10 VAC)
c.
Emergency NLG door actuator
4.
115 VAC non-essential bus: equipment powered
a.
Display Electronics Unit (DEU) cooling fan
b.
Head-up Display (HUD)
(9-98) Original
Page 27-12
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