T-38 Systems Flashcards
When does the left/right Generator lights turn on?
- Gen Switch is off
- That bus is not receiving power from the respective generator.
What is on the Left Gen AC Bus?
R-A-A-L-L-F
Rudder Trim
Augmenter
AOA Heat
Lights
Left (oil/hydPX/fuelBP,TRU#1)
F- Fuel Flow
Components that require 3 phase power?
Boost Pumps
TRUs
Flap Motors
HUD
What is on the Right Gen AC Bus?
THE PC FARMS
Trim
Exciters (ignition)
HUD
Probe Heat
Canopy Seal
Flap Motors
Air Cond/Anti Ice
Right(oil/hydPX,fuelBP, TRU#2)
MDP
Seat Adjust
What is the Generator cut-in range?
43-48%
When does the Generator shift occur?
65-75%
What is the VAC output of the Generators?
115/200 VAC
What is the Generator output rating in KVA and hz?
8 KVA
320-480 hz
What components are powered by the Utility Hydro system?
F-A-N-G-S
Flight Controls
Augmenter System
NWS
Gear ext/ret
Speed Brake
What components are powered by the Flight Hydro system?
Flight controls
Flight time limit with loss of hydro system?
35 Minutes
What are the gear up rudder limits?
6*
What are the gear down rudder limits?
30*
What is the SAS rudder limits?
2*
What is the Rudder Trim limits?
4*
What is the normal fuel pressure?
10 PSI
When does the Left/Right Fuel Press caution light come on?
With less than 6 psi in the engine feed line
What is fuel control regulated by?
TIDE
Throttle position
Engine inlet air temp
compressor discharge pressure
Engine Speed (RPM)
What is AB fuel control regulated by?
Throttle position
Compressor Discharge pressure
Max altitude to gravity feed the engine in the event of an electrical boost pump failure?
MAX only to 25,000 Ft
What altitude is gravity feeding of the engines guaranteed?
6000 Ft
When does the engine anti ice default to the “on” position?
Below 65% and when no power to Right AC bus.
What throttle setting do you need to be above for engine anti ice to be effective?
80%
What is the thrust lost at MIL/MAX with the engine anti ice on?
8.5% in MIL
5.5% in MAX
When does the OXYGEN light come on?
Below 1L or 3L due to sloshing
Normal O2 Px?
50-120
Components that are powered by the Pneumatic System?
Defog
Canopy Seal
G Suit
A/C
P- Cabin Pressure
+2 Hydro Res, Engine Anti Ice
When do you not crossfeed?
BILLL
Boost Pump inop
Indicator malfunction
Low fuel
Low Altitude
LEak in the system
When does the FUEL LOW light come on?
250lbs for 7.5 seconds on the respective gauge
Total fuel with single point refueling?
4084 lbs
Total usable fuel?
3982 lbs
How much fuel is lost using over the wing refueling?
41 lbs
Which fuel cells feed the right engine?
Center and aft cells
Which fuel cells feed the left engine?
Forward and dorsal cells
How many volts are required to close the battery Relay?
18 Volts
With the Batt relay closed, how low should the battery remain on?
10 volts
With a dual TRU failure, how long will the battery supply the essential DC busses?
15 min
The static inverter converts what to what?
DC to AC
How is the inverter acitvated on the ground?
Engine start button pressed or OXY/FUEL switch
How in the inverter activated in flight?
Engine start button
OXY/FUEL switch
Throttle in max
Normal (maximum continuous) thrust is obtained at ____ RPM or ____ EGT, whichever occurs first
98% or 630 EGT
MIL thrust is obtained at ___ RPM without afterburner
100%
MAX thrust is obtained at ____RPM with the afterburner operating
100%
Afterburner range extends from min afterburner of approximately ___ percent augmentation to max AB which is ___ percent agumentation
10%, 50%
Wing Flaps
1 to 45% ____KCAS
300 KCAS
Wing Flaps
46 to 60% ____KCAS
240 KCAS
Wing Flaps
over 60% ___ KCAS
220 KCAS
Do not exceed ____ KCAS with the gear extended
240 KCAS
Do not exceed ___ Kts GS while taxiing with the canopy open
50 KTS GS
Do not exceed ____ KCAS with the nosewheel steering engaged
65 KTS
___ RPM maximum transient (Red Tick)
107 %
____ MIL and MAX RPM ground (Dark green arc)
99-101%
___ MIL and MAX RPM flight
(Dark green arc)
99-104%
___ Idle RPM with WOW (Light green arc)
46-50%
____ EGT max steady state ground/flight (Dark Green arc)
630-650C
___EGT abort start temp (red tic)
845C
___EGT Max during start (red tic)
925C
___EGT MIL and MAX thrust range
630-650C
Oil PX ___ PSI minimum (red tic)
5 PSI
Oil Px ___ PSI normal range (Light green arc)
5-19 PSI
Oil Px___PSI normal range (Dark Green arc)
20-55 PSI
Oil Px___PSI Max (red tic)
55 PSI
FF Normal range Idle- Ground steady state (green bands)
400-600
FF Normal range military- Ground steady state (green bands)
2100-2700
Hydro pressure red tics
1500-3200 PSI
Hydro pressure green arc
2850-3200
At ___ Compressor inlet temps, MIL and AB EGT and RPM may be below normal operating limits
Low
Do not MAX thrust dive with less than___ LBS of fuel in either system
650lbs
MAX thrust in 0-G or negative load factors for more than ___ seconds at 10,000 ft or ___ seconds at 30,000 ft. With less than ____ lbs of fuel in either system, time for successful engine operation is further reduced
10, 30, 650 LBS
Oil PX 0 G flight is limited to ___ sec
10
Oil PX Neg G flight is limited to ___ sec
30
CAUTION– If Oil PX does not recover within approximately ____ seconds, return to normal flight conditions.
10
To avoid exceeding aft CG limits do not let the ____ fuel system double the quantity of the ____ fuel system.
Right, Left
Minimum time interval between full stop landings gear retracted in flight ____
45 min
Minimum time interval between full stop landings gear extended in flight ____
15 minutes
What is mounted to the airframe mounted gearbox?
AC generator and hydraulic pump
Electrical power for the 38 is supplied by?
2 AC Generators
Where is most of the electrical equipment stored on the T-38?
Nose section
What is powered by both hydraulic systems?
Flight Controls
Items that cannot be controlled from the rear cockpit?
Fuel boost pumps
Crossfeed operations
engine shutdown
stability augmenter
AC
MASTER CAUTION light and RIGHT GENERATOR light illuminate, how can you determine if the left generator is not powering the right AC bus?
Blank HUD and OFF indications for the right Oil PX and Fuel flow indicators and on both fuel quantity indicators
In the event of complete AC power failure the flood lights…
Will illuminate provided the flood light control knob is out of the OFF position
What are some AC powered instruments?
Oil px indicators
FF indicators
O2 quantity
Fuel quantity
Hydraulic indicators
What components would fail in the event of complete AC power failure?
Boost Pumps
Trim
HUD
Wing flaps
MDP
What instruments are operational with both generators inop?
RPM
Nozzle position indicators
EGT
How is the WCA system lights powered?
Right AC bus in DIM and the left essential DC bus in BRIGHT
What is on the left DC Bus?
W-V-I-A-F-A-C-T-S
WCA Bright
VOR/ILS/VHF radio
ILS
AOA indexer
Flap Switch
AAP/AIU/Standby AS/ALT
Crossfeed
Transponder
Speedbrake
What is on the right DC Bus?
ITMADEANAGFUN
Ignition
TACAN
MFD
Afterburner
DTS
EED
AIU
NWS
ADC
Gear Control/lights/warn/tones
Fire Detect
UHF radio
Nav-EGI
What voltage does the battery go offline?
10V
