Engine and Related Systems
T-45C TS, ADV & IUT ENG-04
(7) SIFCU: meters fuel to spray nozzles
during start cycle to ensure proper initial
Overlay 10
SIFCU
b.
Monitoring: fuel flow is automatically controlled
by FCU in conjunction with ECA and throttle
position when FUEL CONTROL switch set to
NORMAL
2.
Manual fuel control system
Sg 2, fr 16
Manual Fuel System
a.
Functional description
(1) Operates similarly to main fuel control, but
automatic engine limiting controls do not
function (FUEL CONTROL switch set to
MANUAL)
NOTE: In manual fuel control, special
precautions must be observed because
automatic fuel control protections are
inoperative.
(2) Receives fuel from HP fuel pump
NOTE: Complete loss of electrical power
precludes switching the fuel control from
the position selected.
(3) Throttle directly controls engine fuel
metering
(4) Special cautions must be observed
because automatic fuel protections
are inoperative
(a) Rapid throttle movements may cause
erratic engine operation
CAUTION: Selecting manual fuel at
high rpm may result in exceeding
rpm or EGT limits.
Original (9-98)
Page 4-12
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