T-38C by the Numbers Flashcards
Thrust at MIL
2200 lbs
Type of engines
Propulsion Modernization Program: General Electric J85-GE-5R/S
Thrust at MAX
3300 lbs
Ignition timer and holding relay duration
30 Seconds
Min time from idle to mil
1 second
EED Startup time > 32 degrees F
15 seconds
EED Startup time < 32 degrees F
Up to 5 minutes
Tachometer light green arc (w/WOW)
46-50%
Tachometer dark green arc
99-101% weight on wheels
99-104% weight off wheels
Tachometer red line
107%
EGT long white tic mark
0-40 degrees C
EGT Dark Green Arc
630-650 degrees C
EGT Red Line
845 and 925 degrees C
IF EGT exceedance with an EGT OVERTEMP CAUTION over _______ after brake release continue mission.
650-665 degrees C
FUEL white tick marks
360 PPH
FUEL light green bars
400-600 PPH (IDLE range on deck at sea level)
FUEL dark green bars
2100-2700 PPH (MIL limits at sea level)
Fuel flow indications prior to start with Batt or Ext Pwr
Less than 60 PPH
Fuel Flow gauge turns RED + FUEL LOW CAUTION LIGHT
250 lbs or less for 7.5 seconds
White fuel imbalance indication
60-190 lbs fuel split
Red fuel imbalance indication
200 or more lbs split
EED brightness reduced by 50% in day mode when _______
EED HOT
Where should Gravity fuel feed should work in absence fuel boost pumps?
0-25K ft, but only garunteed up to 6000’ and flameouts observed as low as 7000’
Afterburner fuel flow static:
~ 7300 PPH
Afterburner fuel flow at Mach 1
~11,400 PPH
Oil system reservoir capacity:
4 Quarts oil, 1 quart air expansion capacity
Oil consumption rate limit
6 Oz per hour
Airframe mounted gear box shift range
65-75% RPM
If single engine place both boost pumps on and crossfeed on when:
less than 250 lbs
AC electrical system powered by:
2x 115/200 volt AC generators or ext pwr receptacle
DC electrical system contains:
3x 28 VDC busses (2x Essential buses and 1x Non-essential)
AC generators to DC power
2x50 AMP DC Transformer Rectifiers
Battery shuts off at what voltage?
10 VDC
Left Hyd system
Utility System 3000 PSI
Right Hyd System
Flight Cont Syst 3000 PSI
UTLITY/FLIGHT Hydraulic light illuminates
<1500 PSI
UTILITY/FLIGHT Hydraulic light extinguishes
> 1800 PSI
Landing gear extension/retraction duration:
6 seconds
Max Gear Speed
240 KCAS
“Gear, Gear” Warning
<210 KCAS, 10Kft MSL, Both throttles below 96% RPM or
220-240 KCAS and 2kt/s increase
Alternate gear extension duration:
15-35 seconds
Wheel brake system capacity
0.1-0.2 Gallons
<3/4 Nose Gear Extended
6 degrees rudder
> 3/4 Nose Gear Extended
30 degrees rudder
Cabin Pressure Schedule
0-8000 ft MSL — matched Cabin Alt
8000-23000 ft MSL — Cabin Alt = 8000 +/- 1000’
> 23000 ft MSL — 5 PSI above ambient +/- 2000’
Temp increase with 94-98%
15 degrees C
When to anti-ice fail to ON position?
<65% RPM
Loss of thrust with ENG Anti-ice on:
180 +/-10 lbs
8.5% loss in MIL
5.5% loss in MAX
Pitot Probe Heat
+/-60 degrees C
