Honeywell SPZ-8000 - Inertial Reference System (Irs; Introduction

SPZ--8000 Digital Integrated Flight Control System
A28--1146--055
REV 2
A--1
LASEREF
R
II/III Inertial Reference System (IRS)
Appendix A
LASEREF
R
RR
R
II/III Inertial Reference
System (IRS)
INTRODUCTION
The LASEREF
R
II/III Inertial Reference System (IRS) is an inertial
reference system that computes aircraft position, velocity, heading and
attitude.
This brief description is a summary of the operation of the LASEREF
R
II and III. For a detailed description of system operation, refer to
Honeywell Pub. No. M95--8172--000 (LASEREF
R
II Model No.
YG1779) or M28--3343--001 (LASEREF
R
III Model No. YG4004AB).
All IRSs have an inertial reference unit (IRU), an IRU mounting rack,
and a mode select unit (MSU). Each IRS requires a dedicated +24 V
dc backup battery.
The LASEREF
R
IRS digital outputs include:
D Primary attitude
D Body linear accelerations
D Body angular rates
D Inertial velocity vectors
D Magnetic and true north reference
D Present position data
D Wind data
D Inertial altitude.