Systems GK Flashcards
Generator Cut-in Range
43-48% RPM
Generator Shift Range
65-75% RPM
Generator Voltage
115/200 VAC
Generator three-phase cycles/min
320-480
What does static inverter power?
1) First engine start
2) Right AC inst (Oil & FF)
3) Oxygen quantity indicator
What activates the static inverter on the ground?
1) Either throttle in MAX
2) Either start button is pressed
3) OXY/FUEL switch in GAGE TEST or QTY CHECK
Battery Voltage
24-volt DC
TRU Voltage
28-volt DC
50-amp
Voltage required for battery to close? When does it fall off line?
18-volts to close
10-volts it will fall off line
How long does battery power only usually last?
15 minutes
When is the TRU “RECTIFIER FAILURE” PFL triggered?
Below 25.5 volts
A/A TACAN freq separation
63 channels
Radio attenuate lowers volumes by how much?
66%
Standby ADI will work for how long without power?
9 minutes (within +/-6 degrees)
Left Fuel System cell location
Forward
Right Fuel System cell location
Aft
Total usable fuel
3,906 pounds
Max left fuel quantity
1916
Max right fuel quantity
1990
When does L/R FUEL PRESSURE light come on?
<6 psi
When does FUEL LOW light come on?
<250 pounds for 7.5 seconds
Where does the throttle shut off fuel?
Main fuel control unit
Where does the fuel cutoff swicth shut off fuel?
Fuel shutoff valve (DC) after 1 second
Gravity flow is sufficient for MAX up to how many feet?
25,000’
Gravity flow is only guaranteed up to how many feet? And flameouts reported as low as how many feet?
6,000’
7,000’
Don’t perform MAX thrust dives with less than how many pounds of fuel?
650 pounds
MAX flight time restriction at zero G at 10,000’?
at 30,000’?
10 seconds
30 seconds
When solo, what is the fuel balance limitation?
Don’t allow right (aft) to be twice left (forward)
When to not crossfeed?
1) Low fuel (BEO) (250 pounds)
2) EED or fuel indicator failure
3) Boos pump inoperative
4) Fuel leak in one system
5) Low altitude/traffic pattern
Engine thrust at MIL and MAX
2,200 pounds in MIL
3,300 pounds in Full AB
When does the T5 kick in?
97%
Aftberburner augments engine by what percentage?
5-40%
Loss of thrust for engine anti-ice
180 +/-10 pounds
- 5% in MIL
- 5% in MAX
Fire warning locations
RALF
Right bulb-Aft
Left bulb-Forward
Reduced boost pump operation by how much below what fuel?
40% below 650# per side
Fuel flow can read as low as how much with throttles off?
60 pph
What is on the Utility Hydraulics?
FLCS Stability Augmentor Nosewheel Steering Landing Gear Speed Brake
What is in the EGI?
RALT
YSAS
INS
GPS
Gear Warning Horn sounds when?
Below 210 KCAS
Below 10,000’ MSL
BOTH throttles are below 96%
Alt Gear Extensions can take how long?
15, up to 35 seconds
When is NWS deactivated?
One or both throttles in MAX
Either start button is pressed
Release of the NWS button
Aircraft weight is not on the nose gear
What ECS stuff runs off the Engine Compressor?
Defog Canopy Seals G-Suits Air Conditioning Pressurization \+Engine Anti-Ice 2 Hydraulic Reservoirs
Canopy Defog Temp and Overtemp
200 and 280 degrees
When is cabin pressure 8,000’?
8,000’ - 23,000’
What happens when you ram dump?
Ram air door and Pressure relief vavle opens Defog inop Canopy seals deflate G-suit inop Air-Conditioning inop Pressurization inop
Oil System Zero and Negative G is restricted to how many seconds?
10 seconds for zero-G.
30 seconds for negative-G
What does the airframe mounted gearbox power?
AC generator and Hydraulic Pump
Minimum RPM for engine start? Oil?
12%
Above 0 PSI
What is the heart of the airstart envelope?
18-20%
Max airspeed for full deflection of nosewheel tire?
10 knots
Normal Oil Consumption rate
No more than 6 ounces per hour
What does the Flap-Slab interconnect do?
1) Horizontal tail positioned to minimize pitch changes caused by flap changes
2) As flaps extended, more nose-down travel available in horizontal tail
3) Increases amount of horizontal tail movement per inch of stick travel
Three-phase AC items
1) Boost Pumps
2) TRUs
3) Flaps (slow actuation)
4) HUD (2 phases required to fail to affect)
BERASSE Check
Boldface/Critical Action Items Engine Shutdown? Engine Restart? Alternate Gear Extension? Single Engine Approach? Single Engine Go procedures review Ejection procedures review
When EED is in night, when does it auto switch to full-bright?
22 Volts
781 dash
Good
781 slash
Medium, can be signed off
781 X
Bad, can’t be signed off, needs a dash or slash
Tire pressure time
6 hours or end of day if flown
Preflight is good for how long?
72 hours if not flown
781 if something is highlighted, you need to compare what?
serial numbers to last page of 781
Lowest hyrdo pressure when doing flight control checks
1500 PSI
What is on the Battery Bus?
Static Inverter
Afterburner
Igniters
