Chapter 1 Flashcards
Wet gross weight w/ 2 pilots
12,800 lbs
Engines
J85/GE/5R (8 Stage axial flow turbojets)
Mil thrust
2,200 lbs
Max thrust
3,300 lbs
Start requirements
Airflow, DC (ignition relays), and AC (ignitors)
Start push arms ignitors for ____
30”
Selecting idle during start _______
Fires main & AB ignitors; adds fuel flow
Selecting MAX with engine off ______
Fires main & AB ignitors; adds fuel flow; resets the 30” timer
Deselecting MAX during engine start _____
Ends the 30” cycle
Another way to extend the 30” cycle?
Press and hold the START button
What gives right engine fuel flow indications and oil pressure during a start?
The static inverter converts DC to AC to power the indicators.
When the throttle is cutoff, what happens to fuel flow?
It is MECHANICALLY cut off at the main fuel control; it is ELECTRICALLY cut off at the fuel shutoff valves
What is the “idle to mil” restriction with respect to time?
It should take longer than 1”
How is the EED wired?
It is wired in parallel to the analog inputs; it is repeatable master and slave, and can also be displayed on the MFD, though for this, one EED must be working (processing inputs)
What powers the EED?
The right essential DC bus; without the motor running, the battery can power it.
What type of power is required for the oil pressure, the fuel flow, and the fuel quantity?
Alternating Current (AC)
When on battery power only, what EED indications will still function?
The RPM, the EGT (FTIT), and the Nozzle
What happens when you select GAUGE TEST or QTY CHECK pre-start?
Static inverters fire up to provide the right side fuel flow, oil pressure, and both fuel quantities.
If the battery is below _____ VDC on start, the EED will _____
22 VDC; power up in maximum day mode brightness until the generators take over.
WARNING: anytime you have fluctuating or seemingly erroneous engine data, you should ________
Swap the EED Master-Slave arrangement to confirm the problem.
The MFD will not display EED data unless ____
At least one EED is in “D” or “N” (that is, not off).
At power on, you will likely receive ______
A “Fuel Low” indication during the power on cycle.
The EED will usually take fewer than _____ seconds in a power on cycle.
15”
If it is colder than _____, the EED may take up to ______ to turn on all the way.
32 F; 5 Minutes
Maximum “Night Brite” level is about ____
10% of the maximum day brightness.
The time required to transition from minimum to maximum brightness while pressing and holding the brightness switch is ____
5”
To access the EED bit, press the “T” button for greater than ____ seconds; do not push the button for longer than ___ seconds, as this access the maintenance modes.
2” / 15”
The normal amount of time that “INIT” is displayed until RPM, EGT, OIL, NOZZLE, and FUEL FLOW indications are displayed is _____
8”. Fuel quantity may take 10”, and you should allow a few more for it to be accurate.
When no valid data is available from the sensors external to the EED itself, RPM and EGT will display _____ ; Oil, Nozzle, Fuel Flow, and Fuel Quantity will display ____ .
Zero (RPM/EGT)
OFF (Oil/Nozzle/Fuel Flow/Fuel Quantity
Crossfeed indications will show a magenta line connecting fuel quantities; if one quantity gauge is inoperative, crossfeed indications will show _____; if both are inoperative, ______.
With one only, the magenta line will be drawn horizontally and be suspended in space for the bad gauge; with both gauges inoperative, you will not have indications.
If an EED detects an internal failure, it will notify you ______; the gauges will read ____. Which of these will be repeated on the SLAVE and MFD displays?
…by placing FAIL in the EED message window; OFF will be displayed in the affected gauge(s). On the the OFF indication will be repeated. FAIL will only display on the failed EED.
RPM displays
Light Green
Dark Green
Red Line
46-50%
99-101% (changes 99-104% with weight off the wheels)
107%
When you overspeed the engine, what indications will you have?
The Warning Caution Advisory System will alert (nag) you; the digital number and pointer will be red while the overspeed occurs; the gauge label (RPM) will latch red.
0% RPM or EGT means ___
Either 0% actual RPM or EGT, or a bad sensor, but a good EED.
During a MASTER to SLAVE transition, you will see ____ displayed; when the SLAVE is becoming the MASTER, you will not see _____.
INIT (if it takes more than 8”, you’ll see “0”)
INIT, since it is not displayed in SLAVE to MASTER transitions
EGT indications are produced by ______
DC voltage take from the thermocouples
EGT displays Overall gauge range Long white tic marks Dark green arc Red tic marks
0-1200 C
0 and 140 C
630 - 645 C
845 and 925 C
Actual EGT limits in MIL
630 - 650 C
Overtemperature indications will display ____ during the actual over temperature; afterwards, you will know you had an over temperature because _____
After the time requirement is satisfied, the digital and analog displays will be red, and you should receive an alert; although the temperature may return to normal, the words EGT will stay red.
