Glossary
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TermDefinition
- Courses, RYA Wingfoiling Sustained FlightsThe RYA Wingfoiling Sustained Flights course is for those who have mastered the basics of wingfoiling and want to focus on continuous flight.... More Details
- Flag Semaphore, Signals & Communication Letter W (Flag Semaphore)

Flag semaphore indicating the letter W.
- Morse Code, Signals & Communication Letter W (Morse Code)
International Morse Code sequence representing the letter W.
- General Nautical Terminology, Weather (Meteorology) WMO
An intergovernmental organization with a membership of 191 Member States and Territories that works to facilitate international cooperation in...
More Details - General Nautical Terminology Working End
The Working end of a rope refers to the part of the rope that is actively being used for a specific task, such as tying a knot, securing a line...
More Details - General Nautical Terminology, Navigation World Geodetic System 1984 (WGS84)
A standard in satellite-derived positions. Charts will indicate if they are calibrated to WGS84 or another system.
WGS84 is the standard...
More Details - General Nautical Terminology, Weather (Meteorology) World Meteorological Organization (WMO)
An intergovernmental organization with a membership of 191 Member States and Territories that works to facilitate international cooperation in...
More Details - Organisation World Sailing (ISAF)
World Sailing, formerly known as the International Sailing Federation (ISAF), is the governing body for the sport of sailing...
More Details - General Nautical Terminology, Navigation WPT
A specific location or reference point on a navigational route, often used to mark progress or changes in course.
A waypoint is a...
More Details - Flag / Pennant, Signals & Communication Code Flag Xray (X)

The International Maritime Signal Flag Xray.
Meaning
Stop carrying out your intentions and watch for my signals.
- Flag Semaphore, Signals & Communication Letter X (Flag Semaphore)

Flag semaphore indicating the letter X.
- Morse Code, Signals & Communication Letter X (Morse Code)
International Morse Code sequence representing the letter X.
- Phonetic Alphabet, Signals & Communication X-Ray
Pronounced: ECKS-ray
The term for the letter X in the NATO Phonetic Alphabet.
- General Nautical Terminology, Navigation XTE
The lateral distance and drift between a vessel's actual position and the intended navigational track or course.
Cross Track Error (XTE) is a...
More Details - General Nautical Terminology Yacht
A yacht is a recreational boat or ship, typically larger than a standard pleasure craft. Yachts are often used for private cruising, racing, or...
More Details - Courses, RYA Yachtmaster Ocean TheoryThe RYA Yachtmaster Ocean Theory course teaches celestial navigation and advanced passage planning for long-distance offshore sailing.... More Details
- Phonetic Alphabet, Signals & Communication Yankee
Pronounced: YANG-kee
The term for the letter Y in the NATO Phonetic Alphabet.
- General Nautical Terminology Yard
A horizontal spar on a sailing vessel attached to the mast and used to support and spread a square sail.
A yard is an essential component of...
More Details - General Nautical Terminology, Weather (Meteorology) Yatchsman's Gale
Nickname for the Beaufort Scale - Force 6
"Yachtsman's gale" is often used to describe the wind strength of Force 6. It gets its name because...
More Details - General Nautical Terminology, Parts of a Boat Yawl
A two-masted sailing vessel with the smaller mizzen mast positioned aft of the rudder post.
A yawl is a type of sailing craft characterised by...
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