Simrad GC80 User Manual

Simrad GC80/GC85 Dual Gyro Compass
2 20221537 / D
1.1 Introduction
GC80 and GC85 Dual Gyro systems have been designated for
any size of vessels which requires more than one gyro system.
The system includes one common control unit, from which each
gyro system may be operated individually or as one dual system.
A GC80/85 gyro system enhances the navigation capabilities
and reliability. It eliminates the inconvenience and limitations of
magnetic compasses, and provides a variety of electrical outputs
to supply accurate and consistent heading information to other
navigational equipment.
- A GC80
Dual gyro system is designed for vessels with
speed up to 30 knots. The system complies with IMO
A.424 (11) and Wheel Mark Specifications.
- A GC85
Dual gyro system is suitable for high speed
vessels with speed up to 70 knots. It complies with IMO
A.821 (19) HSC.
GC80 standard and GC85 High Speed Dual gyro systems have
different sensitive elements, but use identical GC80 Dual control
unit. The systems are identified with divergent dip switch
settings in Master compass and in the control unit.
Note! A GC80 or GC85 system is identified by the labelling on top of
the Master compass’ case as shown on the figure below.
The labelling on the control unit is identical for both gyro
systems.
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Simrad GC80 Specifications

General

Brand	Simrad
Model	GC80
Category	Marine Equipment
Language	English