19 terms starting with R.
- Radar SART (SART)
X-band search and rescue transponder that responds to a 9 GHz radar pulse by generating a distinctive 12-dot line on the rescuing vessel's radar display.
- Radio Officer (R/O)
An officer certified to operate GMDSS equipment and manage all radio communications on board; a role increasingly merged with other duties.
- Recommended Track
A route of undefined width for the convenience of vessels in transit, indicated on charts but not mandatory.
- Reefer
A refrigerated container or cargo space maintaining a controlled temperature for perishable goods during transport.
- Reefer Container
A refrigerated ISO container with an integral refrigeration unit maintaining controlled temperatures for perishable cargo.
- Reefer Plug
An electrical socket in a ship's hold or on deck providing power to a reefer container's refrigeration unit.
- Remotely Operated Vehicle (ROV)
Tethered underwater robot used for inspection, repair, and intervention work, typically operated from an MPSV or DSV.
- Renewal Survey
A statutory survey conducted to renew a SOLAS or MARPOL certificate for a further period, typically five years.
- Rescue Coordination Centre (RCC)
Generic term for a coordination centre handling SAR; MRCC is the maritime variant, ARCC the aviation variant.
- Restricted in Ability to Manoeuvre (RAM)
Vessel which from the nature of her work is restricted in her ability to manoeuvre; shows ball-diamond-ball / R-W-R lights.
- Rhumb Line
A course that crosses all meridians at the same angle, appearing as a straight line on a Mercator chart.
- RightShip
A third-party maritime risk-assessment platform providing GHG ratings and vetting inspections used by cargo owners to screen vessels.
- RightShip Star Rating
Risk rating (1–5 stars) used by dry-bulk charterers; combines technical, environmental, and inspection data.
- Ro-Ro Vessel
A ship with built-in ramps allowing wheeled cargo such as cars, trucks, and trailers to be driven directly on and off.
- Rogue Wave (extreme wave)
Wave more than ~2× the significant wave height; rare but documented and dangerous.
- Roll-On/Roll-Off (RoRo)
Cargo handling method where wheeled vehicles or trailers drive on and off the vessel under their own power via ramps.
- Rotterdam Rules
The 2008 UN convention on contracts for international carriage of goods wholly or partly by sea, modernising earlier cargo liability regimes.
- Running Fix
A position obtained from two or more bearings of the same object taken at different times and advanced along the course line.
- Running Moor
Anchoring with two anchors by laying the first anchor while making way ahead, then dropping the second after veering chain.