Chapter 6: Fuel Systems Flashcards
fuel system requirements
1) uninterrupted flow
2) draws from only 1 tank at a time
3) venting
4) independent fuel system
what can added inhibitors control within fuel?
corrosion, oxidation, ice, microbial growth
does fuel draws from the outer or inner wing first
outer
fuel subsystems
1) storage (wings)
2) vents
3) distribution
4) feed (crossfeed fuel to engines)
5) indicating
3 types of fuel tanks
rigid removable, bladder, integral
what are sumps in fuel tank for
contaminants and water
what are fuel valves for
shut off fuel flow or route fuel to location
what is boost pump for
provide fuel under positive pressure
2 types of fuel cleaning device
fuel strainers
finger screens
common types of fuel heaters
air fuel heaters (compressor bleed air)
oil fuel heaters (hot engine oil)
fuel system indicators
1) quantity
2) flowmeters
3) temperature
what is fuel flow units displayed in?
pounds per hour
what should be attached to the aircraft when refueling?
bonding cables to the ground and refueling cart
sequence to dump fuel to atm
1) on boost pump
2) open dump valve
3) open fuel dump nozzle valve
what is flapper valve used for?
allow fuel to flow inboard to the pump but not outboard during maneuvers