Types and operation Flashcards
How far from the wall of an engine does the fuel tank needs to be?
No FUEL TANK should be on the ENGINE SIDE OF THE FIREWALL
It must be at-least ONE-HALF inch away from the firewall
How many tanks do you need in an older Gravity feed system?
One tank
How many tanks do you need in a newer Gravity feed system?
Two tanks, one in each wing
Where can you find the Finger screen?
It is attached on the top of the standpipe
Older single tank are usually not in the wings. It is on the ______.
Fuselage ahead of cockpit so that no electrical systems
What is the fuel flow requirement for a gravity feed aircraft fuel system?
Always 150%
Why does a tank compartment must be vented and drained?
So that no explosive vapours and liquid can accumulate
There must be at least ______ that will allow safe drainage of the entire fuel system when the airplane is in its normal ground attitude.
One drain
If more than one fuel tank has interconnected outlets, the airspace above the fuel must also be _________.
interconnected
It is a low point in a fuel system and/or fuel tanks
This is where contaminants settle at the bottom of the assembly
Fuel strainers/Sumps and Drains
The tanks are vented to the outside to maintain _______ inside the tank.
atmospheric pressure
It is only used for starting, sucks fuel from the strainer and squirts it to a nozzle in to a cylinder intake.
Primer
What lines are used for for no movement?
Aluminum lines
What lines are used if movement is found?
Fuel Hose
How many engine driven fuel pumps do we need?
Only one engine driven fuel pump for EACH ENGINE
How many fuel tanks can a fuel pump draw from?
- No pump can draw fuel from MORE THAN ONE tank at a time
- provisions must be made to prevent air from being drawn into the fuel supply line
Low wing aircraft must use a _____ to feed fuel system
pump
What other words can you describe Engine Driven Pump?
BOOST pump or Auxiiary pump
________ is used for starting, or as a backup to the EDP and to ensure fuel flow when switching tanks
AUX pump
What fuel percentage of fuel flow is needed for a pump to feed fuel system?
125%
High performance engine means higher altitudes and steeper climbs
Has a vapour return system to prevent vapour lock
Fuel is fed from wing tanks to an accumulator tank (small reservoir tanks) which is always full regardless of flight attitude
High wing Fuel injection
Fuel injection system with 2 interconnected wing tanks acting as a single cell
Left and Right side selector valves provide for “cross feed”
Small Multi-Engine Fuel Systems
