KING AIR C90GTi/C90GTx
PILOT TRAINING MANUAL
• EFIS
• Displays the following information
• Uncorrected Pressure Altitude
• Baro-Corrected Altitude
• Vertical Speed
• Airspeed (KIAS & KCAS)
• Indicated Airspeed Trend Vector
• Mach Number
• Maximum Airspeed (V
MO
/M
MO
)
• True Airspeed
• Ram Air Temperature (RAT)
• Static Air Temperature (SAT)
• ISA Deviation Temperature
• Wind Direction and Speed Vector
• Attitude and Heading Reference
Systems (AHRS)
• Integrated Avionics Processor Sys-
tem (IAPS)
Figure 16-43. ADC
ATTITUDE AND HEADING
REFERENCE SYSTEM
(AHRS)
The Attitude and Heading Reference System
(AHRS) provides pitch, bank, and magnetic
heading data to the onside displays (Figure
16-44). Both Units are installed under the
cabin floor near the center of the aircraft.
Figure 16-44. AHRS
Magnetic heading information is obtained
from separate magnetic sensors located in
each wing. Compensator units automatically
correct for magnetic interference within the
airplane or due to sensor error.
Attitude information is obtained from two at-
titude and heading computers (AHC). Each
system includes an inertial measurement unit
(IMU) that monitors angular rates and accel-
erations about the airplane axes. The IMU
does not provide self generated navigation po-
sition. The AHC processes IMU data to de-
termine airplane pitch and bank attitude.
Each AHC is provided with a primary and sec-
ondary power supply for redundancy. If the
secondary power supply should fail, the pri-
mary power supply will continue powering the
AHC. After 10 minutes of operation on pri-
mary power only,the primary power supply
will cease operating. The power loss to the
AHC will result in a total failure of that AHC.
There will be no indication, except from a pos-
sible tripped circuit breaker. This indicates a
failure of the secondary power supply. If the
primary power supply should fail, the AHC
will immediately fail. In either case, the cross-
side AHC may then be selected using the
AHRS reversionary switch to regain AHRS
information on the affected side.
The output of each AHRS is supplied to the
integrated avionics processor system (IAPS)
16-22
FOR TRAINING PURPOSES ONLY
16
A
VIONICS
Summary of Contents for C90GTi
Page 5: ......
Page 7: ......
Page 9: ......
Page 11: ......
Page 13: ......
Page 45: ......
Page 47: ......
Page 49: ......
Page 87: ......
Page 89: ......
Page 97: ......
Page 99: ......
Page 101: ......
Page 113: ......
Page 115: ......
Page 117: ......
Page 139: ......
Page 141: ......
Page 193: ......
Page 195: ......
Page 203: ......
Page 205: ......
Page 207: ......
Page 215: ......
Page 217: ......
Page 219: ......
Page 241: ......
Page 243: ......
Page 259: ......
Page 261: ......
Page 263: ......
Page 277: ......
Page 279: ......
Page 281: ......
Page 283: ......
Page 285: ......
Page 311: ......
Page 313: ......
Page 315: ......
Page 323: ......
Page 333: ......
Page 437: ......
Page 439: ......
Page 441: ......
Page 443: ......
Page 467: ......
Page 471: ......
Page 483: ......
Page 485: ......
Page 487: ......
Page 491: ......
Page 493: ......
Page 495: ......
Page 515: ......
Page 517: ......
Page 519: ......
Page 521: ......
Page 547: ......
Page 555: ......
Page 557: ......