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MD-11 Fuel System
| Question | Answer |
|---|---|
| Total Fuel Quantity | 258,000# |
| Fuel by tank | Wing 41, Main 65, UAux 87, LAux 11, Tail 13 |
| Stab trim set to this to aid in tail fueling | 3 degrees nose up |
| Temp probes are in these tanks | 3 and Tail |
| Quantity Test occurs when (2 times) | AC Power application or closing of Refueling Panel door |
| In Manual, pushing a pump switch turns on | All pumps in that tank |
| Aft pumps for each tank come on automatically when | Pulling start switch out on start |
| Aft 6 Boost Pumps are all | Super pumps (jet pumps) |
| Forward pumps are auto on during | T/O, Descent, landing |
| #2 Left Aft Boost Pump and Tail Tank Alt Pump powered by | REAC |
| Engines that can suction feed | 1 and 2 |
| Foot reduces speed to __ when tip tanks are ___% full | 320 KIAS, 60% |
| Aux Fill Isolation Valve is always __ when FSC is in Manual | CLOSED |
| Manifold Drain | With low fuel opens and drains into #2 tank |
| Lower Aux Pumps | Time out so UA pumps stay on by themselves |
| Lower Aux and Tail Tanks must be __ for takeoff and land | OFF |
| MTGW for H and L modes | 630.5 and 625.5 |
| Ground Fuel Scheduling applied when | >9000# in UA or >156K# |
| 2 Reasons to be restricted to "L" mode | Ballast fuel anywhere MEL requires it |
| GFS in auto begins when | Refueling Door Closed and AC pwr |
| Where to look for "H" mode | Wt/Bal, Pat Config page, FP/R |
| Tail Fuel MGT aims for CG | 2% FWD of Max AFT limit |
| Min fuel to start TFM | 60K |
| No more fuel transferred aft at | 51K |
| Tail fuel "metered" FWD at | 11.5K |
| Tail fuel sent forward | FL270 |
| Fuel is trapped in tail when | Below FL180 and Configured |
| For TFM to work with ballast in UA, you must have | 2000# of usable fuel in UA tank |
| FSC in MAN without TFM results in a penalty of | 2.7% |
| FP/R plans fuel burn with CG of | 25.0 |
| Requirements for TFM | FSC-AUTO 60K total fuel at start No Tail Tank Ballast |
| TFM begins when | Slats Retract |
| TFM Terminates for | Inop Hardware, Inop Data, Cold fuel recirc unsuccessful |
| Wing Cold Fuel Circ #s | 6 Deg start, until 5 deg warmer or 15 minutes, 3 deg of freeze FUEL TEMP LO |
| Tail Cold Fuel Circ #s | 8 Deg recirc in tank 5 Deg 1/3 swapped with another tank 3 deg of freeze FUEL TEMP LO & TAIL FUEL FWD |
| Tail Ballast requires | All fuel in tail unusable, pull pump CBs |
| Fuel dump rate | 5000 ppm |
| First push of fuel dump switch | FMS Dump To GW (default 481.5) |
| Second push of fuel dump switch | Stops Dump |
| Third push of fuel dump switch | Dumps to fuel low level shutoffs 11/12/11 34,000# approx |
| Ballast fuel is protected in ___ mode only | AUTO |
| FOM Min Fuel Over Destination | 15K |
| FOM Max Diff between FP/R TO fuel and actual TO fuel | 10K |
| FOM Max Diff between W&B Fuel and FOB | 3K |
| FOM Max Diff between single tank and FSF and actual | 1K |
| Max Diff between Total FSF and Actual Fuel | 3K |
| Must declare Emergency fuel when you will land with | 11K |
Created by:
cakorps