T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
2.
Fuel delivery
Sg 4, fr 6
Boost Pumps
a.
Boost pumps
(1) Location two boost pumps are mounted on
a manifold and installed in the negative-g
compartment of the wing tank
(2) Functional description
(a) Provides fuel under pressure to LP
pump during all aircraft maneuvers
(b) A time delay will take the electric fuel
boost pumps off-line 30 seconds after
loss of aircraft generator
(c) Fuel system feeds the engine LP
pump for initial fuel supply
b.
Engine fuel supply flow from negative-g
Sg 4, fr 7
Engine Fuel Supply
compartment boost pumps to bypass valve to
fuel shutoff valve to engine
Sg 4, fr 8
GTS Fuel Supply
c.
GTS fuel supply downstream of fuel shutoff
valve
3.
Venting
Sg 4, fr 9
a.
Vent tank: assists in transfer of air and fuel
Vent Tank
vapors from collector tank to atmosphere;
allows condensed fuel and surplus GTS fuel
to drain back into collector tank
Sg 4, fr 10
b.
Main vent large outlet line from vent tank
Main Vent
4.
Refueling self-sealing valve assembly with bayonet
Sg 4, fr 11
flange
Refueling Coupling
(9-98) Original
Page 27-40
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