Fuel

Question 1

What types of fuel tanks are there on the A321?

Answer 1

Center and Wing tanks
(320 has Center and Inner Tanks)

Question 2

What is at the most outboard part of the wing?

Answer 2

Vent Surge Tank

Question 3

What are the fuel quantities of each tanks?

Answer 3

18.5 tonnes in the 321 NEO (Center has around 6.4 tonnes)
18.6 tonnes in the 321 CEO (Center has around 6.4 tonnes)

Question 4

How many fuel pumps are there per engine?

Answer 4

Each engine is supplied from two pump on its own side of the tank

Question 5

What are Suction Valves?

Answer 5

Allow engines to be fed by gravity of the wing tank pumps fail
Usually closed by pump pressure in normal ops

Question 6

What order to the fuel tanks empty in?

Answer 6

Center and then wing tanks
Every time fuel is burned from wing tanks center will keep transferring fuel into respective wing tank

Question 7

Is all the fuel burnt when sent to the engine?

Answer 7

No, some of the fuel supplied to each engine goes to the IDG heat exchanger for IDG cooling

Question 8

What is the process during refuelling?

Answer 8

Goes into all tanks simultaneously

Question 9

What is approximate refuelling time?

Answer 9

20 mins for all tanks 18.6 tonnes