T-45A UJPT, E2-C2, ADV, & IUT Eng-26
Engineering Review
L.
Aircraft interfaces
Sg 4, fr 12
Blank Screen
1.
Hydraulic system
TAKE A BREAK
a.
All hydraulic subsystem items powered
by HYD 1
b.
If HYD 1 fails, services retained due to
backup/alternate means include
(1) Landing gear/doors: gravity free-
fall extension and lock
(2) Forward NLG doors partially close
electrically
(3) Arresting hook: gravity/pneumatic
extension
(4) Wheel brakes: wheel brake/
emergency flap accumulator
provides enough braking for one
normal landing (a minimum of 10
brake applications)
(5) Flaps: full extension with wheel
brake/emergency flap accumulator
pressure > 2,200 psi
c.
If HYD 1 fails, services lost include
(1) NWS: use differential braking
instead
(2) Anti-skid: must be selected OFF
to conserve wheel brake/emer-
gency flap accumulator pressure
for wheel brakes
(3) Launch bar: will retract due to
mechanical (spring) pressure;
extension not possible
(4) Arresting hook: retraction not
possible
Page 26-46
(8-03) Original
Previous Page
