Enclosure_1_Performance_Requirements.doc
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- 210' GYROCOMPASS REPLACEMENT
- Solicitation number
- HSCG80-14-Q-P45466
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Enclosure 1 Performance Requirements
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| File | Type | Posted |
|---|---|---|
| Amendment_004.pdf | ||
| Amendment_003.pdf | ||
| 210_GYROCOMPASS_SOLICITATION_PACKAGE.pdf |
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Performance Requirements – The gyrocompass equipment shall be type approved to IMO Resolution A.424 (XI). In addition, the gyrocompass system shall meet the following requirements.
Gyrocompass Minimum Accuracy per IMO Resolution A.424(XI)
Settle Point Error: Settle time within 6hrs (roll and roll ±5°)
| Minimum Requirements |
| Gyrocompass specifications |
| Mean |
| ±0.75°×SEC(latitude) |
| RMS variation |
| ±0.25°×SEC(latitude) |
| Repeatability |
| ±0.25°×SEC(latitude) |
Settle Point Error (operation): settle time within 6 hrs (6-15 sec, roll and pitch plus and minus 5°, Horiz accel 0.22 m/s2
| Minimum Requirement |
| Gyrocompass specifications |
| Repeatability |
| ±1°×SEC(latitude) |
| Residual steady state (static) error (after speed & course compensation) |
| ±0.25°×SEC(latitude) |
| 0-20 kt acceleration |
| ±2° |
| 180° turn @ 20 kt |
| ±3° |
Roll ±20°, 6-15 sec;
Pitch ±10°, 6-15 sec;
Yaw ±5°, 6-15 sec. & Horiz accel 1 m/s2 ±1°×SEC(latitude)
| Repeater accuracy |
| ±0.5° |
| Heading Accuracy |
| ±3° Secant Latitude (between 70° North and 70° South) |
| Settling time at sea |
| < 20 minutes (full accuracy) |
| Gyrocompass Additional Requirements |
| Minimum Requirement |
| Gyrocompass specifications |
| Environmental conditions |
| Operating Temperature: -18°C to +55°C (0°F to 130°F) |
Storage Temperature: -40°C to +75°C (-40°F to 167°F)
Humidity: 0% to 90%, relative, non-condensing Operating Temperature:
Storage Temperature:
Humidity:
| Power input |
| 20 – 32 VDC (24 VDC nominal) |
| Operating Envelope |
| Heading: 0° to 360° |
Roll: - 45° to + 45° Pitch: - 45° to + 45° Heading:
Roll:
Pitch:
| Mean Time Between Failures (MTBF) |
| 40,000 hours |
| Master Gyrocompass Maximum Physical Characteristics |
| Height: 20 5/8 inches (524 mm) |
Width: 12 inches (305 mm)
Depth: 12 Inches (305 mm)
Weight: 66 LBS (29.9 kg)
| Characteristics |
| 1) Visual indication of status |
2) Power switch cutoff
3) Runtime meter
4) Connect/disconnect of ship’s synchro reference
5) System fault alarm
6) Loss of power alarm 1)
2)
3)
4)
5)
6)
| Master Gyrocompass Data Ports |
| At least two (2) RS-422 Input Ports with capability to accept different bauds rate. The NMEA-0183 data rate up to 100Hz. |
| Master Gyrocompass Data Ports |
| At least three (3) RS-422 Output Ports (two output ports dedicated to NMEA0183 “HDT” data/sentence) with capability to be individually settable in the different bauds rate. The NMEA-0183 output rate up to 200Hz. At least one (1) output port will be using as a spare. |
| System Equipment |
| One Master Compass and associated gyrocompass electronics unit(s), as required. |
| Manufacturer: |
Model:
| Steering indicator for Pilot House steering console (bracket mounted). |
| Manufacturer: |
| Port and starboard bridge wing bearing indicators, including pelorus stands, telescopic alidades and azimuth circles. |
| Manufacturer: |
| Heading indicator for Pilot House chart table. |
| Manufacturer: |
| Heading indicator for Commanding Officer’s Cabin. |
| Manufacturer: |
| Heading indicator for Combat Information Center. |
| Manufacturer: |
| Step distribution unit, with individual fused cutout switches, providing 70 Vdc, 6 steps per degree heading data to four external systems. Include power supply and digital to step converter, as required. |
| Manufacturer: |
| Synchro distribution unit, with fused cutout switches, providing 60 Hz 36x and 1x synchro signals for four external systems. Includes power supply and digital to synchro converter, as required. |
| Manufacturer: |
NMEA distribution unit providing isolated NMEA 0183 heading signals for seven external systems Manufacturer:
| Pilot House alarm for gyrocompass system loss of power and fault alarms. |
| Manufacturer: |
Enclosure (1)
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