T-45A UJPT, E2-C2, ADV, & IUT Eng-07
Electrical
C.
28 VDC essential services bus: equipment
Sg 4, fr 2, p 2
powered
28 VDC - ESSENTIAL SERVICES BUS
ACInverters
Nav.Light,Tail
Flaps/Slats Ctrl
ADRS
Nav Sw. Power
FuelAccelInd.
Angle Of Attack
NoseWhlStr
FuelAccelSol.
Anti-Skid Ctrl
OBOGSMonitor
3
Fuel Bst Pmp(s)
Approach-IdleStop
1.
MAP lights
OBOGS, Shutoff Valve
Fuel Control, Manual
ApproachLights
Fuel Flow Indicators
PitotHeater
Arresting Hook
6
Fuel Lvl Cntrl 1
PressToTest
Brake Transducer
Cabin Press Ctrl. No. 1
FUEL LOW Caution
RAT Reset
Cabin Press Warn.
Rudder Pedal Shaker
Fuel Quantity Indicator
Cabin Temp
SAHRS
4
Fuel Sys. Distr.
CWSEU
SeatPositionControl
7
Fuel Sys. Cntrl
Comm Amplifier A
Slats Pos. Ind.
4
Fuel Sys Trans
DCPowerControl
2.
EMERG lighting
Fuel Sys Trans 1
Spd. Brake Cntrl. & Ind.
6
EGT Indicator
Gen Off-Load
Stabilator Trim
Ejection Seat (IFF)
Generator Reset
Standby Attitude Ind.
EmerJett(WingOnly)
2
Emerg Lights
Gen Undervolt
TACAN
Emerg NLG Door
Tachometer(42%Rly
)
GTSFuel/OilPump
Act.Engine Bleed Valve
ThrottleProx.Sw.
HYD1&2Trans./Ind.
Engine Control Amp.
HYD2Reset/Bypass
Tri-Axial Accelerometer
Engine Ignitors
IFF
UHF/VHFRadioNo.1.
Engine Start
3.
NAV lights - TAIL
Landing Gear Control
Engine Vib & Press
Landing Gear Pos. Ind.
Warn/Caut/Adv (Brt)
Fire Detection
Launch Bar
Flap Control Emerg.
Warning Tone
Map Lights
Wt.-on-WheelsControl
Flap Pos. Ind.
ELECTRICAL LOAD DISTRIBUTION--
D.
115 VAC essential bus: equipment powered
PART 2
1.
Horizontal situation indicator (HSI)
Sg 4, fr 2, p 3
115 VAC BUSES
26 VAC BUSES
ESSENTIAL
NON-ESSENTIAL
ESSENTIAL
NON-ESSENTIAL
2.
Standard attitude heading reference system
HSI
ADRS
ADI
HSI
Control Augmentation
SAHRS
HUD
TACAN
DEU
Radar Altimeter
Emer NLG Door Act.
VOR / ILS / MB
(SAHRS)
ARMAMENT BUS
6 VAC BUSES
ESSENTIAL
NON-ESSENTIAL
Master Arm
Trigger Power
NAV Lts Wing
Formation Lights
14/10 VAC
28 VAC
3.
Emer NLG door activator
ESSENTIAL
NON-ESSENTIAL
5 VAC NON-ESSENTIAL BUS
Warn/Caut/Adv
Console Ltg
MIP Cockpit Lights
2
2
2
(Dim)
E.
115 VAC nonessential bus: equipment powered
ELECTRICAL LOAD DISTRIBUTION--
PART 3
1.
Attitude director indicator (ADI)
2.
Head-up display (HUD)
3.
Radar altimeter
4.
Formation lights (6 VAC)
F.
26 VAC essential bus: equipment powered
1.
HSI
2.
TACAN
G. 26 VAC nonessential bus: equipment powered
Sg 4, fr 3
1.
Airborne data recording system (ADRS)--
LEGEND
1
Aircraft 163600 THRU 163634 BEFORE T-45A AFC-71
2
Aircraft 163635 AND UP; ALSO 163600 THRU 163634 AFTER T-45A AFC-71
the recording feature is 28 VDC essential
3
Operate for 30 seconds after loss of generator.
4
Aircraft 163600 THRU 163646 BEFORE T-45A AFC-36
5
Aircraft 163647 AND UP; ALSO 163600 THRU 163646 AFTER T-45A AFC-36
bus powered
6
Aircraft 163647 THRU 165062
7
Aircraft 165063 AND UP; ALSO 163600 THRU 163646 AFTER T-45A AFC-36
ELECTRICAL LOAD DISTRIBUTION--
2.
DEU
PART 4
3.
VOR/ILS/MB
Page 7-22
(8-03) Original
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