Default A321 Pairbus Merge Fuel Pump Question

[Lrusso]

Any idea why after merging the panel/vc that the fuel pumps show a fault?

Thanks in advance

[iheart707]

It seems for some reason they disabled the pumps in the .cfg file of their Airbus models. Under the section of [fuel] you should find something very similar to what I have, if not exactly.


From Project Airbus' A320-232 Model
[fuel]
Center1= 4.15, 0.0, -4.00, 2179.6, 8.0
LeftMain= 3.31, -19.6, 1.40, 1829.6, 5.0
LeftAux= -4.80, -36.4, 2.20, 232.5, 5.0
RightMain= 3.31, 19.6, 1.40, 1829.6, 5.0
RightAux= -4.80, 36.4, 2.20, 232.5, 5.0
fuel_type=2.0
number_of_tank_selectors=1
electric_pump=0

From the Default A321
[fuel]
Center1 = -4.0, 0.0, 0.0, 2150, 0 //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)
LeftMain = -6.4, -16.8, 0.0, 2040, 0 //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)
RightMain = -6.4, 16.8 0.0, 2040, 0 //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)
LeftAux = -15.2, -37.6, 2.0, 780, 0 //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)
RightAux = -15.2, 37.6, 2.0, 780, 0 //Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)

fuel_type = 2 //Fuel type: 1 = Avgas, 2 = JetA
number_of_tank_selectors = 1
electric_pump=1
fuel_dump_rate = 0.0167 //Percent of max quantity per second, i.e. about 1 minute for full fuel



You can try to change this yourself to see if this takes care of the issue, however the folks at Project Airbus might have had a reason to disable it, so keep that in mind. Hopefully they could explain it in detail a little better as to why but this should take care of your issue. Post back here if it does.

[Lrusso]

Takes care of the issue I didn't make a fight so its hard for me to see if its effecting fuel flows?

Would it in real life?

[Lrusso]

Fuel pump on didn't seem to make much of a difference.

Next think i noticed is that the HYD ELEC is off.

Going to see if that makes a difference.

[iheart707]

Takes care of the issue I didn't make a fight so its hard for me to see if its effecting fuel flows?

Would it in real life?

I don't believe so, however it is my understanding that the pumps are only on incase there is an air bubble in the line. I believe on jets that have their engines under the wing, work on a suction basis rather than having raw fuel pumped into the engine. I could be complety wrong, but in the world of the sim, it really shouldn't make a differnce at all.

[iheart707]

Fuel pump on didn't seem to make much of a difference.

Next think i noticed is that the HYD ELEC is off.

Going to see if that makes a difference.

Alrightly, let us know if it does.

[Lrusso]

With HYD ELEC enabled the pressure still does not rise above 0 PSI but it does not read in fault or off condition so thats fixed!

Nothing seems to be different as a result of any of this. Except (i'm not sure if this is new or always the case) but the APU starts and runs normally but is not drawing fuel is that normal?

[iheart707]

With HYD ELEC enabled the pressure still does not rise above 0 PSI but it does not read in fault or off condition so thats fixed!

Nothing seems to be different as a result of any of this. Except (i'm not sure if this is new or always the case) but the APU starts and runs normally but is not drawing fuel is that normal?

Check to see if they forgot to add the section under [hydraulic_system] and if these numbers compare.

Pairbus A320-232

[hydraulic_system]
electric_pumps=1
engine_map=1,1,0,0
normal_pressure=3000.000000


As for the APU, it uses fuel but the amount is so minimal, that it is almost pointless to model it in FSX. Realisticly though it does use a reasonable amount of gas, when several APU's are onboard. You will most likely never see a fuel consumption reading that is realistic for the APU.