PRIMUS
r
1000 Integrated Avionics System
A28--1146--112--00
A--1/(A--2 blank)
AHZ--800 Attitude and Heading Reference System (AHRS)
Appendix A
AHZ--800 Attitude and Heading
Reference System (AHRS)
INTRODUCTION
The AHRS is a self--contained strapdown system that computes
velocity, heading, and attitude data. It does not compute position
information.
The AHRS digital outputs the following:
D
Primary attitude
D
Magnetic heading
D
Body linear accelerations
D
Body angular rates.
Each AHRS contains the attitude and heading reference unit (AHRU),
configuration memory module, and flux valve. Both primary and
auxiliary 28 V dc are supplied to each AHRU. The system is controlled
using the panel--mounted HEADING/FREE and L/R switches.
The AHRS interfaces with the following equipment:
D
Flight guidance system (FGS)
D
Flight management system (FMS) (option)
D
Micro air data computer (MADC)
D
Electronic display system (EDS)
D
Weather radar
D
Backup radio management unit (RMU) navigation display.
The AHRU and the equipment it interfaces with are shown in figure A--1.