T-45C TS, ADV & IUT ENG-17
OBOGS & ECS/Pressurization System
8.
Pilots personal gear
'
a.
Regulator
(1) Delivers oxygen-enriched air at positive
pressure before reaching face mask
(2) Increases pressure automatically at cabin
altitudes above 35,000 ft
b.
Face mask: delivers oxygen-enriched air to
pilot
c.
Anti-g suit: receives pressure via operating air
from OBOGS air supply duct through g valve--
pressure is regulated based on the following
conditions
(1) Increasing positive g forces move activating
weight down compressing a spring,
opening demand valve and initiating
inflation of g suit at approximately 2 g
NOTE: Maximum inflation occurs at
approximately 6 g
(2) Decreasing g forces allow spring tension to
move activating weight up, opening exhaust
valve and deflating g suit
Sg 2, fr 14
9.
Pilot services panel (left console, both cockpits)
Pilot Services Panel
a.
Provides immediate connection/disconnection
of oxygen hose to ejection seat
b.
Enables manual opening/closing of bleed air
shutoff valve
c.
Enables/disables OBOGS flow of oxygen-
enriched air to seat survival kit
d.
Provides a built-in-test capability (anti-g system)
Original (9-98)
Page 17-7
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