The Simrad GC80 Gyro Compass MK2 Gyro Sphere is a key part of the Simrad GC80 gyrocompass system, which is used on various sized vessels to enhance navigational capabilities and provide reliable heading information .
The Gyro Sphere utilizes sophisticated and fully sealed sensitive elements that require no annual servicing and can be swapped for onboard service if needed. These elements are built with very low RPMs to reduce wear and tear, extending the lifespan of the Gyro Sphere. Additionally, no annual oil changes are required, making the Simrad GC80 Gyro Compass MK2 Gyro Sphere virtually maintenance-free.
Here are some of the key features of the Simrad GC80 Gyro Compass MK2 Gyro Sphere:
• High Accuracy and Stability: The Gyro Sphere incorporates new technology to deliver the highest possible accuracy and stability in heading information.
• Suitable for Harsh Conditions: The fully sealed design of the Gyro Sphere makes it suitable for even the harshest maritime environments.
• Flexible System Configuration: The Simrad GC80 Gyrocompass system offers a wide range of control unit options, allowing for flexible configuration for new installations or retrofitting into existing systems.
• IMO Approval: The Simrad GC80 Gyro Compass MK2 is fully IMO approved for standard and high-speed craft, making it compliant with international maritime regulations.
The Simrad GC80 Gyro Compass MK2 Gyro Sphere is a vital component for any vessel requiring a highly accurate and reliable heading reference system. Its durability, ease of maintenance, and flexible configuration options make it a popular choice for commercial and recreational applications.
GENUINE SPARES • SIMRAD GC80 / GC85 MK2
Simrad GC80/85 Gyro Compass MK2: Specifications, Sensitive Elements & Spares Directory
The Simrad GC80 and GC85 MK2 Gyro Compass systems are fully IMO approved for standard vessels and High-Speed Craft up to 70 knots. Utilizing a completely sealed sensitive element, they require zero annual oil servicing and boast a calculated MTTF of 30,000 hours (>70,000 observed hours), making them ideal for dynamic positioning (DP) and commercial shipping. Discover full schematics in our complete Simrad GC80/85 Flagship Guide.
1. Critical Spare Parts • Sensitive Elements (Gyrosphere)
The sensitive element is sealed and maintenance-free with a typical operational life of 4 to 8 years. Never mix GC80 and GC85 elements:
| Part Description | Part Number | Vessel Application & Notes |
|---|---|---|
| GC80 Sensitive Element | 44174027 | Standard commercial merchant vessels; IMO A.424(XI) |
| GC85 Sensitive Element | 44170728 | High-Speed Craft (HSC up to 70 knots); IMO A.821(19) |
| Special Service Tool | 44174449 | Mandatory tool for safely extracting & seating sensitive elements |
2. Printed Circuit Boards (PCBs) & Complete MK2 Unit Assemblies
| Module Designation | Catalog Part Number | Alternate / Description |
|---|---|---|
| MCC PCB (Master Compass Control) | 44142313 | Alt: 10189501 02 • Inside Master Compass, controls rotation |
| Inverter PCB Module | 44141760 | Alt: 10169537 • Drives high-frequency gyro rotor motor |
| Compact Control Unit MK2 (Complete) | 000-15036-001 | Complete factory assembly for single gyro installations |
| Expanded Control Unit MK2 (Complete) | 000-15037-001 | Supports up to 10 repeater lines with individual 1A fuses |
| Dual Control Unit MK2 (Complete) | 000-15038-001 | Dual gyro automatic failover unit for DP2 / DP3 systems |
| GC80 Master Compass (Unit) | 27102169 | MK2 enclosure (Legacy: 27101674) |
| GC85 Master Compass (Unit) | 27101682 | High-Speed Craft master compass enclosure |
3. Fuses, Cables & Retrofit Support
- Fuses: Master Compass Front Fuse F1 (12A); PSU F201 (6.3A) & F202 (20A); Control Unit F101 (6.3A); Repeater Lines F1–F10 (1A).
- Cables & Mounts: Flush Mount Kit
27101757; Extension Cables: 5m (44170736), 10m (44170744), 15m (44170751). - Legacy GC50 Retrofit: The GC50 is obsolete; the GC80 MK2 Compact or Expanded system is the direct authorized replacement.
Urgent Onboard Attendance • Simrad GC80/85
Certified engineers available 24/7 across UAE, India, Oman, Egypt, and global ports.
