Glossary
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TermDefinition
- General Nautical Terminology RaftTwo or more vessels tied up alongside each other
- General Nautical Terminology, Navigation Range of Tide
The vertical difference between the high tide and the succeeding low tide in a specific tidal cycle.
The range of tide is a fundamental...
More Details - General Nautical Terminology Raster chartElectronic chart which is a direct copy of a paper chart with limited zooming capability
- General Nautical Terminology, Navigation Rate (Tidal Stream)
The speed at which a tidal stream flows, typically measured in knots.
The rate of a tidal stream is the velocity at which the water moves due...
More Details - Flag / Pennant, Signals & Communication Code Flag Romeo (R)
The International Maritime Signal Flag Romeo.
Meaning
Distance (range) in nautical miles. Given using Numeral Pennants.
- General Nautical Terminology Reach
The point of sail where the wind is coming from the side of the boat, roughly perpendicular to the direction the boat is travelling.
A reach...
More Details - General Nautical Terminology ReachingSailing across the wind: from about 60° to about 160° off the wind. Reaching consists of "close reaching" (about 60° to 80°), "beam reaching"... More Details
- General Nautical Terminology Ready AboutThe helmsman’s shout that he intends to go about shortly
- Flag Semaphore Ready (Flag Semaphore)
The Ready (Flag Semaphore) signal shows the sender is ready to send a message. The same shape is also used for Space (Flag Semaphore) & Rest...
More Details - Flag Semaphore Ready to Recieve (Flag Semaphore)
The Ready to Recieve signal shows the sender that the recipient is ready to receive a message. This shape is displayed once the sender has...
More Details - General Nautical Terminology Reef
A reef is a submerged ridge of rock, coral, or sand near the surface of oceans or seas. It can be made up of living organisms like coral or...
More Details - General Nautical Terminology Reefing
Verb: Reefing refers to the act of reducing the area of a sail to decrease wind exposure and maintain control in strong winds.
Noun: Reefing...
More Details - General Nautical Terminology Reefing Hook
A reefing hook is located near the bottom of the mast at the gooseneck, where the boom connects to the mast. When reefing, the cringle is placed...
More Details - General Nautical Terminology Reefing LinesReefing lines are used to reduce the size of the mainsail. By reducing the size of the mainsail we can improve the yacht's stability and... More Details
- Flag Semaphore Rest (Flag Semaphore)
When the sender is not actively sending messages, both flags are held by their side. The same shape is also used for Space (Flag Semaphore) &...
More Details - General Nautical Terminology Restricted in Ability to ManoeuvreUnable to get out of the way due to work being done. Could be a dredger, towing vessel etc.
- General Nautical Terminology Restricted VisibilityVisibility restricted by rain, drizzle, fog, etc., during which vessels are required to proceed at a safe speed and to navigate with extreme caution
- General Nautical Terminology Rhumb LineA line on the surface of the earth that cuts all meridians at the same angle. On a standard Mercator chart the rhumb line appears as a straight line
- General Nautical Terminology Riding TurnOn a winch the situation where an earlier turn rides over a later turn and jams
- General Nautical Terminology Rigging
The system of ropes, cables, chains, and other apparatus used to support and control the sails and masts of a sailing vessel.
Rigging is...
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