T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
b.
Controls/switches/indications: barometric set
knob used to set local pressure in window
(system has remote calibration screw for
maintenance use)
c.
Subsystem interfaces: both standby altimeters
use same pitot static system inputs
(1) Power: 28 VDC generator bus vibrator
power
(2) Forward standby altimeter provides
barometric pressure for the entire system
and Mode C altitude information to DEU
then to IFF
d.
Standby airspeed indicator: provides standby
airspeed from 60 to 850 KIAS
e.
Standby vertical speed indicator (VSI):
provides standby indication of rate of descent
and rate of climb feet per minute (ft/min)
C.
Angle of attack (AOA) major components
Fig 26: AOA System
1.
AOA indicator: indicates AOA, using needle and
scale graduated from 0 to 30 units. The pointer
position is proportional to the local AOA signal
provided by an AOA transmitter, via two DC
potentiometers, to AOA indicator in each cockpit
a.
Controls/switches/indicators:
(1) OFF flag on each indicator to monitor
power
(2) Stall warning index
(3) Optimum AOA for approach index
(4) Optimum rate of climb index
(9-98) Original
Page 27-102
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