| SOLAS Chapter V Regulation 19 - Nav equipment and systems
|
| 150 GT+
|
Magnetic Compass
|
| Nautical charts / ECDIS
|
| ECDIS backup (ECDIS or folio of paper charts)
|
| GNSS receiver or terrestrial RNS receiver (e.g. Loran)
|
| Spare magnetic compass (spare may be a Gyro with battery but such does not fulfil separate Gyro requirement)
|
| 300 GT+
|
Echo-sounder
|
| 9 GHz radar (X-band) (must detect SART)
|
| Electronic plotting aid (EPA) to plot electronically the range and bearing of targets to determine collision risk
|
| SDME (through water)
|
| THD (Magnetic, GNSS, or Gyrocompass) to transmit heading to radar, EPA and AIS
|
| AIS
|
| 500 GT+
|
Gyrocompass with display at main steering position
|
| Gyrocompass heading repeater with display at emergency steering position
|
| Gyrocompass bearing repeater
|
| Auto tracking aid (ATA) - to plot automatically the range and bearing of other targets to determine collision risk
|
| 3,000 GT+
|
3 GHz radar (S-Band) or second 9 GHz radar if allowed by Administration
|
| Second auto tracking aid
|
| 10,000 GT+
|
ARPA connected to device to indicate speed and distance through water
|
| Heading Control System or Track Control System
|
| 30,000 GT+
|
Rate of Turn indicator
|
| SDME (forward and athwartships)
|
