Questions tagged [fuel-systems]

Any question regarding aircraft fuel systems, how they work etc.

8 questions with no upvoted or accepted answers
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How can the fuel decrease evenly from both wing tanks when an A320 is running on APU only?

I stumbled over this sentence in a training material about fuel leak: "If the fuel quantity symmetrically decrease in both wing tanks and the fuel quantity in the center tank decrease, the fuel leak ...
4
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198 views

Is there an indication in the cockpit when the refueling control panel door is open on the ATR72?

Is there any indication (light, MFD/SD displays) in the cockpit of opened/closed refueling control panel door in ATR72-600?
3
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92 views

Could injectors be used as an alternative to turbopumps in jet engines?

Could injectors be used instead of turbopumps in aeroengines? Are there jet engimes that already use them? https://en.m.wikipedia.org/wiki/Injector
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132 views

Are there design guidelines for sizing vent/surge tanks?

Could someone explain the sizing process of Vent/ Surge tank of Aircraft fuel system? I understand the Vent tank is to collect fuel overflow from the main fuel tanks. The reason could be due to Fuel ...
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49 views

How do airblast fuel atomisers work?

How do airblast fuel atomisers work? Do they simply inject fuel with high velocity? Against the flow or perpendicular to it? How is the fuel jet shaped?
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26 views

Can someone explain how the FUEL MANIFOLD PRE FILL LOGIC system works on the CFM LEAP 1A engines for the A320NEO?

While reading through one of my companies operations notice regarding the LEAP 1A engine I came across this term. But my company hasn't been able to explain how this system works. Could someone help ...
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115 views

May an A330 depart with with empty outer fuel tanks?

Airbus does not recommend flying with empty outer tanks, to reduce stress on the wings. Also, when the outer tank transfer valve is inoperative, the MEL says to fill the outer tanks with fuel and it ...
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484 views

What is the correct procedure for overwing fueling a CRJ200?

I have a question regarding overwing fueling a Canadair CRJ200. Let's say I was pressure fueling and one of the wings started venting fuel on the ground. The Crew Chief determined that I had to ...