T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
28 VDC - Generator Bus
Stabilator Trim Standby
Bombs Release
AC Isolation Relay
MFDs, Right (Both
UHF/VHF 2
Cabin Presure Control 2
ADRS Total Air Temp
Cockpits)
Undervoltage Sensing
Comm Control Power B
Htr Pwr
OBOGS Heat
Voltage Regulator
DEP, Fwd
Aileron Trim Control
Overvoltage Unit
VOR/ILS Control
Flood Lighting
Aileron Trim Position
Reticle Light
Yaw Damper
GTS Drain Valve
Indicator
Rockets Release
Landing/Taxi Light
Angle-of-Attack Heat
Rudder Trim Control
Master Arm
Anti-Collison Lights
Stabilator Position
MDL Power
Baro Altimeter, Stby
Indicator
28 VDC-Essential Services Bus
Accel/Bleed Valve Control
Ejection Enable Switch
Fuel System Quantity
Navigation Light, Tail
Accel/Bleed Valve
(IFF)
Indicator
Nose Wheel Steering
Indicator
Emergency Jettison
Generator Off-Load
OBOGS Monitor
ADI, Standby
(Wing Station Only)
Generator Undervoltage
OBOGS Shutoff Valve
ADRS
Emergency Lighting
GINA
Pitot Probe Heat
Angle-of-Attack Indicator
Emergency NLG Door
GTS Fuel/Oil Pump
Press to Test
Annunciator Lights
Actuation Control
HYD 1, 2, & Brake
Ram Air Turbine Reset
Anti-Skid Control
Engine Bleed Valve
Transducer
Rudder Pedal Shaker
Approach Idle Stop
Engine Control & EGT
Hydraulic 2 Bypass
Motor
Arresting Hook
Indicator Pwr
IFF Control
SADS Note 2
Cabin Pressure Control 1
Engine Vibration and
IFF RCVR/XMTR
Seat Position
Cabin Pressure Warning
Pressure Monitor
Slats Position Indicator
Cabin Temperature
External Power
Inverters Protection
SpeedbrakeControl
Control
Fire Detection
Landing Gear Control
Speedbrake Position
Caution Warning System
Flaps Control (Emer)
Landing Gear Selector
Indication
Comm Control Pwr A
Flaps Control Main
Valve
Stabilator Trim Main
DC Power External Supply
Flaps Position Indicator
Launch Bar
TACAN
DC Power Generator
Fuel Boost Pump
Manual Fuel Sys Bleed
Throttle Proximity
Reset
Inverters Note 1
Valve Time Delay
Switches
DC Power Voltmeters-
Fuel Boost Pumps
Manual Fuel System
Turn/Slip Indicator
DEU Note 2
Control Note 1
Control
UHF/VHF 1
Fuel Flow Indicator
Master Start 1 & 2
VCR/CEU Note 2
Fuel System Control
Master Switch Batt 2
Weight-on-Wheels
Fuel System Low Level
MFD, Left
Control
Warning
(Both Cockpits) Note 2
115 VAC Buses
26 VAC Buses
Non-Essential
Essential
Essential
Non-Essential
DEU
Annunciator Lights
TACAN
DEU Cooling Fan
VOR/ILS/MB
(Night)
ADR
Radar Altimeter
Yaw Damper
Emergency NLG Door
Act (Pwr)
GINA (Synchro. Signal)
6 VAC Buses
5 VAC Non-Essential Bus
Non-Essential
Essential
NAV Lights, Wing
Formation Lights
MIP Cockpit Lights
28 VAC Non-Essential Bus
Console Lights
Legend
NOTE 1 Operate for 30 seconds after loss of generator bus.
NOTE 2 Operate for 2 minutes after loss of generator bus.
Figure 2: ELECTRICAL LOAD DISTRIBUTION
Page 27-152
(9-98) Original
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