fuel Flashcards
how many pounds total?
20,000 pressure
15,722 gravity
how many pounds in each main tank?
4,860 pressure
4,523 gravity
how many pounds aux tank?
7,168 pressure
6,676 gravity
how many pounds tail tank?
3,112
what tanks to fuel first?
main tanks first
then…..
aux and tail at the same time for w&b
how long from empty to full does it take?
24 minutes from full empt to full
where does the apu get it’s fuel?
-right main and cools apu generator via heat exchanger
-left motive flow backup (blockage, apu pump failure, or negative g conditions)
what is the turbulator?
disturbs air around tail fuel dump to create negative pressure
what tanks can you dump fuel from?
tail tank and saddle tanks
flaps at 0
what is the purpose of the fuel system computer unit? fscu
fuel quantity guages
automatic fuel transfer
automatic refueling shutoff
channel 1 and backup channel 2
how fast does the tail tank transfer fuel?
1,800 pounds per hour
when does the airplane not auto transfer fuel?
tail and aux tanks on the groud. wow
when does FUEL IMBALANCE display?
800 lbs flight
400 lbs ground
>400 lbs taxi STOP
400 lbs flight and flaps 20 or more
<100 lbs
when does the cas extinguish FUEL XFLOW SOV OPEN?
after fuel in transferred due to an imbalance and fuel <100 lbs imbalance and 50 second delay
how to crossflow?
L(R) TO AUX XFLOW
flows from wing tank to the auxiliary tank
do not operate with GRAVITY XFLOW