Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
Fuel Capacity
A - Total B - By tank |
A- 256.8
B- 1&3 - 40.5 ea (81.0) 2 - 64.0 (Total Mains = 145.0) UA - 87.1 (AUX = 98.1) LA - 11.0 (TAIL = 13.1) TAIL - 13.1 |
|
|
DUMP switch (red guarded)
|
press
1 dumps to FMA entered value @ 5800 ppm 2 shuts off dump / cancels FMS dump shutoff 3 dumps to min dump level (11.5/main tank) 4 Stops dump |
|
|
DUMP switch controls what valves?
|
1 - Fill Valves and Fill ISOL Valves- CLOSE (xcpt Upper Aux)
2 - Uppr Aux Fill Valve - OPENS 3 - ALL Boost and XFER Pumps - ON (xcpt Tail Alt Pump 4 - Crossfeed Valves - OPEN 5 - L/R DUMP Valves - OPEN |
|
|
Fuel SYSTEM switch
SELECT ------------- MANUAL |
Cycles between two auto controllers
both lights - system fault (in manual) Manual - system selected to Manual mode |
|
|
Selecting MANUAL on Fuel SYSTEM switch does what?
|
1,2,3 Boost Pumps - ON
All Aux Xfer and tail Xfer pumps - ON Tank 2 Xfer and Fill valves remain in Last position Tank 1/3 xfer, Tail Alt pump, & All crossfeeds - OFF |
|
|
MANF DRAIN switch (red guard)
DRAIN |
Manual only
drains fuel manifold fuel into Tank 2 (about 400 lbs). Tank 2 <1800 lbs |
|
|
ALT PUMP switch
ON -------- LOW |
Turns on tail tank alt pump (manual mode)
ON - xfers fuel from tail to ENGINE 2 LOW - pressure low or tank empty |
|
|
__ PUMPS switch(es) 1,2,3
LOW ------- OFF |
Turns on/off ALL Boost pumps for respective tank (manual)
Tanks 1&3 - Fwd and Aft Tank 2 - Fwd, L&R AFT LOW - Low pressure with all pumps commanded on OFF - 1&3 Auto mode - pumps are OFF due to suction feed - 2 - no pumps commanded ON |
|
|
TRANS switch(es)
ON ------- LOW |
turns respective xfer pump ON (manual mode)
Provides fuel to manifold ON - Pumps commanded ON LOW - Low pump pressure when pump commanded On |
|
|
FILL switch(es)
ARM ------- FILL |
switch opens fill valve (manual mode)
ARM - Fill valve armed to accept xferred fuel Tank 2 stays armed w/any Uppr Aux tank pump ON Tanks 1/3 remain armed if Tank 2 >40,000 lbs (<40.0 must HOLD) FILL - Fill valve open and accepting fuel |
|
|
Describe normal fuel scheduling
|
1 - LWR AUX to UPPR AUX to 1/2/3 TANKS to respective ENG
2 - when AUX(s) empty - TANK 2 to TANKS 1/3 until equal (about 40.5) to respective ENG 3 - TANKS 1/3 <11,500 - Tip fuel xfers inboard |
|
|
Tail Fuel Management
A - Target B - when active C - Begins when D - How |
A- fuel moves fwd/aft to maintain target CG (2% fwd of max aft)
B- >60,000 lbs at end of fueling and FSC in AUTO C- Starts during climb, (gear and flaps up) D- moves fuel AFT from MAINS and AUX, moves fuel forward to UPPR AUX |
|
|
Tail Fuel Management ends when...
|
<51,000 lbs onboard
26,750 feet on descent 19,750 in descent (hard) 11,500 in any tank 3 deg within fuel freeze temp in tail |
|
|
Tail TRANS switch
ON -------- LOW |
ON - Tail XFER pumps ON, opens UPPR AUX Fill valve (manual)
LOW - Low pressure or tank empty |
|
|
Cold Fuel Recirculation
A- Tail B - Wings |
A - 8/5/3, within 8 deg of feezing circulates fuel IN tank, within 5 send 1/3 fwd then back, within 3 tail fuel mgmt terminates
B - 6/15 within 6 deg 1&3 circulate until temp rises 5 deg or 15 mins elapse. If 15 mins are first, then "FUEL TEMP LO" |
