T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
d.
Intercom system (ICS): caution tone sounds in
headset concurrently with caution advisory
indications (FUEL and F PRES)
e.
Airborne data recorder (ADR): monitors fuel
quantity and fuel flow signals
3.
Venting: releases air/vapor to atmosphere through
pressure relief valves
a.
Operational description: outward venting
(1) Collector tank: collector tank and negative-
g compartment vent air or vapor to vent
tank. Condensed fuel returns to collector
tank from vent tank
(2) Integral wing tank: vented to upper part of
fuselage tank
(3) Fuselage tank
(a) Vented to atmosphere through dual-
setting pressure relief valve and an
electrically operated bleed valve
(b) Normal pressure relief occurs at
pressure in excess of 9.5 psi
(c) Reduced pressure relief of 4.0 psi
when FLIGHT/REFUEL/DEFUEL
switch is set to REFUEL or tail hook
is down
b.
Operational description inward venting:
provides datum air (ram air) inward venting, if
tank pressurization fails
4.
Refueling: acceptable fuels (no adjustment to fuel
control required)
a.
Grade JP-5
b.
Grade JP-4
(9-98) Original
Page 27-45
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