T-45C TS, ADV & IUT ENG-21
CNI System
2.
TACAN antenna
Overlay 1
TACAN Antenna
B.
Forward fuselage (underside)
Overlay 2
UHF/VHF 2 Antenna
1.
UHF/VHF 2 antenna
Overlay 3
2.
Marker beacon antenna
Marker Beacon
Antenna
C.
Right wing
Overlay 4
1.
Glideslope antenna
Glideslope Antenna
D.
Top fuselage (right side)
Overlay 5
UHF/VHF 1 Antenna
1.
UHF/VHF 1 antenna
E.
Tail section (right side)
Overlay 6
AFT IFF Antenna
1.
IFF antenna
Overlay 7
VOR/LOC Antenna
F.
Left wing
1. VOR/LOC antenna
PROGRESS CHECK
Question 5 — 1.4.18.3
What is the function of the Navigation control FWD/AFT on
the HSI display?
ANSWER: It allows pilots to transfer control of the navigation
systems.
Question 6 — 1.4.18.2.1
What electrical buses supply power to the CNI system?
ANSWER: 28 VDC essential services bus, 28 VDC generator
bus, 115 VAC essential bus, 26 VAC essential bus, and 26
VAC non-essential bus
Page 21-40
(9-98) Original
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