660 Weather Radar System; Primus Â; Attitude And Heading Reference System (Ahrs) - Honeywell PRIMUS 1000 Pilot's Manual

PRIMUSr1000 Integrated Avionics System
PRIMUS â

660 WEATHER RADAR SYSTEM

The PRIMUS
â
elements:
Weather Radar Receiver/Transmitter/Antenna
D
Weather Radar Controller.
D
The PRIMUS 660 Weather Radar System is a lightweight, X--band
â
radar with alphanumerics designed designed for weather depiction and
GMAP. In the weather depiction mode, storm intensity levels are
displayed in four bright colors contrasted against a deep black
background. Areas of very heavy rainfall are displayed in magenta,
heavy rainfall in red, less severe rainfall in yellow, moderate rainfall in
green, and little or no rainfall in black (background). Range marks and
identifying numerics are used to facilitate the evaluation of storm cells.
NOTE: The PRIMUS
power is much stronger than previous Honeywell weather
radar systems. Refer to the PRIMUS
System pilot' s manual for ground safety information.
In the GMAP, the system parameters are optimized to improve
resolution and to better identify small targets at short ranges. The
reflected signals from ground surfaces are displayed as magenta,
yellow, or cyan (most to least reflective).
A brief description is included in Appendix B, PRIMUS
Radar System, of this manual. A complete description is given in
Honeywell Pub. No. 28--1146--111.
ATTITUDE AND HEADING REFERENCE SYSTEM
(AHRS)
The AHRS includes the following components:
Panel--Mounted Control Switches
D
Attitude and Heading Reference Unit (AHRU)
D
Thin Flux Valve.
D
The AHRU uses fiber optic gyros, accelerometers, and flux valve inputs
to derive attitude, heading, angular rates, and linear acceleration
information. This information is supplied to the PFD, MFD, flight
guidance system, weather radar, and other aircraft systems and
instruments. The AHRU differs from conventional vertical and
directional gyro systems, in that the optical fiber gyros output rate of
change data from the initialized reference attitude.
System Description
2-6
660 Weather Radar System includes the following
660 Weather Radar System transmitter
â
660 Weather Radar
â
660 Weather
â
A28--1146--112--00