STUDENT GUIDE FOR T-1A AIRCRAFT SYSTEMS
Standby Attitude Indicator
The standby attitude indicator (located on the center instrument panel) displays pitch and roll
information on an attitude sphere in relation to an indicating plane which represents the aircraft.
The instrument is capable of providing operation from the standby battery during a complete
electrical failure, and will provide accurate + 6° indications for a period of nine minutes after all
electrical power including the standby battery is lost.
A conventional magnetic compass, located on the windshield divider, is furnished in case of
instrument or electrical failure, and for instrument crosscheck. Readings should be taken only
during level, unaccelerated flight since errors may be introduced by turning, acceleration, or
deceleration. A compass correction card, indicating deviation with radios and inverter power on,
is located below the compass.
1006. INTEGRATED AVIONICS
The avionics components consist of:
An avionics rack
An Integrated Avionics Processor Assembly (IAPS)
A data acquisition system
A weather radar system
Two AHRS consisting of two Attitude Heading Computers (AHC) and a standby power
A flight management system
10. A radio system
11. An audio system
A Ground Proximity Warning System (GPWS)
13. A flight data recording system