FILES
North Stabilization During Short Power Failures
With over 100 years of experience in the marine gyrocompass industry, Northrop Grumman Sperry Marine delivers an advanced low weight marine gyrocompass. The unique method of supporting the system by means of mere buoyancy ensures north stabilization during short power failures.
The Gyro Compass from Northrop Grumman Sperry Marine ensures high accuracy and maximum reliability under all environmental conditions. The Gyro Compass uses a data transmission technology instead of using slip rings. Providing proven technology and long maintenance periods, the Gyro Compass is a long-time secure investment, with low operation costs.
Extreme Weather Conditions
The NAVIGAT X MK 1 Mod 7 marine gyrocompass provides highly accurate heading information in extremely heavy seas. The system is equipped with a special gyrosphere container, with a unique centering pin retaining arrangement that is mounted in an additional gimbal system. This allows almost unlimited freedom of roll and pitch (±90°).
Key Benefits of Gyro Compass NAVIGAT X MK 1:
- Complies with IMO regulations A.424(IX), A.694(17), A.821(19) – High-Speed Craft (HSC) and ISO 8728
- Comprised of one single unit
- Type-approved rate-of-turn output
- Gyro system remains north stabilized during power interruptions of up to 3 minutes
- Short maintenance and repair times – low service costs
Gyrocompass Features
- Automatic static north speed error correction – no extra unit required
- High-speed transmission and follow-up system 100° / sec
- Highly accurate digital heading data transmission by a shaft encoder
- Twin rotors (19,000 rev / min) and liquid damping system eliminate latitude error
- A ±180° electronic alignment error correction in the setup program (mechanical correction is not necessary)
- MTBF of 40,000 hours & Maintenance intervals of 18 months
- Insensitive to horizontal acceleration
- Will drive a maximum of 12 analogue repeaters
- Two independent 6 steps/degree heading outputs (0.5 A)
Outputs to Navigation Data Printer
- Heading
- Heading source gyro/magnetic
- Rudder angles of two independent rudders
- Automatic emergency power changeover and status alarm
- Single point suspension of the gyrosphere container eliminates the well-known adverse effects associated with gimbals
| Ambient Temperature Range | operation -10°C to +55°C |
| storage -25°C to +70°C (without supporting fluid) | |
| Settling Time | < 3 hours (0.7°) |
| Gyrocompass Follow-up Rate | 100°/sec. |
| Heading Display | digital with 4 digits |
| Power Failure Alarm | visible and audible and potential-free contact, max. 30 VDC / 1.0A, max. 125 VAC / 0.5A, max. current 2 A,max. voltage 250 V |
| Meantime Between Failure | 40,000 hours (MTBF) |
| North Speed Error Correction | static, input IEC 61162-1, or manual |
| Built-in Test Equipment | standard |
| Gyrocompass Waterproofing | IP 23 in accordance with IEC / EN 60529 |
| Width | 404 mm |
| Height | 520 mm |
| Depth | 420 mm |
| Weight: NAVIGAT X MK 1 Mod 10 | 25 kg |
| Weight: NAVIGAT X MK 1 Mod 7 | 28 kg |