MEAN: ‘Mean’, in the context of high or low water, is the figure for an average tide. Thus, Mean High Water Springs, is the height achieved by an average spring.
mean low water - A figure representing the average low tide of a region.
measured mile - A course marked by buoys or ranges measuring one nautical mile. Measured miles are used to calibrate logs.
Mean high water- The depth of the water at average high tide.
Mean low water- The depth of the water at average low tide.
Midships- The widest point on a boat.
Mean wave height.
Horse Latitudes
The Horse Latitudes is the name of the belt of calms, light winds and fine, clear weather between the trade wind belts and the prevailing westerly winds of higher latitudes.
GMT:
Mean solar time at the meridian of Greenwich. Abbreviated GMT. Also known as Greenwich civil time; universal time; Z time; zulu time.
Go About:
To turn the boat head:to:wind so as to go about on the opposite tack ...
GREENWICH MEAN TIME-Time as measured at the meridian of Greenwich, England.
GUDGEON-An eye fitting into which the rudder's pintles are inserted.
GUNKHOLING-Shallow-water sailing and anchoring in out-of-the-way places.
Greenwich Mean Time
GMT for short. Coordinated universal time is a newer standard. A time standard that is not affected by time zones or seasons.
Grommet ...
MTBF - Mean Time Between Failures. This is an indication of the reliability of a product in normal use
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N ...
one flash to mean "I am altering my course to starboard";
two flashes to mean "I am altering my course to port";
three flashes to mean "I am operating astern propulsion"; ...
GMT, Greenwich Mean Time, Zulu
The time at the Greenwich meridian, or zero degrees longitude.
go about, come about ...
mean high water: the average level of high tide for any area. mean low water: the average level of low tide for any area.
What the Markers Mean
Red colors, red lights, and even numbers indicate the right side of the channel as a boater enters from the open sea or heads upstream.
By heavy weather we mean weather conditions and high winds which cause a boat and crew to depart from their planned track and take evasive action to prevent capsizing and loss of the craft.
"On her beam ends" may mean the vessel is literally on her side and possibly about to capsize; more often, the phrase means the vessel is listing 45 degrees or more.
Confused water action found at places where tidal currents meet chronometer A highly accurate timepiece, set to Greenwich Mean Time and used for celestial navigation.
GMT - See Greenwich Mean Time.
Go About - To turn the boat head-to-wind so as to go about on the opposite tack
Go Adrift - To break loose from a mooring, anchor or docking.
I mean, if you find a lug nut, and you find a 1976 MGB Midget five feet away, it doesn't take a rocket scientist to figure out where the lug nut is going to fit.
Eventually the term came to mean the number of tun casks of wine which a merchant ship could carry. And eventually again, builders and seafarers began to measure, in rough and in various ways, so as to come to the cubic content of a vessel.
mean draught 23 ft. 6 in., displacement 11,525 tons, I.H.P. 10,500 and speed 16 ,knots as designed, 12,000 I.H.P. and 163/4 knots being reached on trial. They carried four 13-in, guns in currets 15 in. thick, four 8-in, guns in turrets 9 in.
While ripples mean that wind is present, don't confuse them with current. Bigger waves may indicate the approach of stronger gusts of wind.
By this we mean have all chain and at least fifty feet of anchor rode on deck laid out so it will pay out smoothly.
Have all of your rafting lines out and secured to the proper cleats. Bow line, Stern line, and two spring lines.
This would mean a "Six-Pack" license or similar to take paying passengers aboard your vessel.
By 'real' I mean these four boats are not intended to be anything but cruising boats.
What does "bareboat" mean? Many people are a little fuzzy when it comes to terminology used by yacht charter professionals.
However, this does not mean that L may sail any course she desires (or luff W without limitation). Two important restrictions apply. First, Rule 16 (Changing Course) requires that any time L changes course she must allow W "room to keep clear" (i.e.
Therefore the green light does not mean an unqualified go, but rather it means proceed with caution subject to other rules applying.
In fact, the bold young seaman contemplating long cruises and sometimes venturing out of sight of land will find that the yawl rig possesses no mean merit. For singlehanded cruising its worth has long been recognized.
Time measured in Greenwich Mean Time. Coordinated universal time is a newer standard. A time standard that is not affected by time zones or seasons.
go about
Change tack to bring wind to the other side.
Beam: The width of the hull, often taken to mean the maximum width.
Beam Reach: Sailing with the wind directly abeam. (See Point of Sail )
Bear Away, Bear Off: To steer away from the wind. (See Point of Sail ) ...
burden or burthen - Supposed to mean the quantity in tons of dead weight that a vessel will carry.
(j) The words "length"' and "breadth" of a vessel mean her length overall and greatest breadth.
(k) Vessels shall be deemed to be in sight of one another only when one can be observed visually from the other.
Leeward: Used as an adjective to mean away from the wind. A leeward yacht is one that has another yacht between it and the wind (opposite of windward).
At sea it may be used by fishing vessels to mean: my nets are caught on an obstruction.
See also: Signals.
Search for Flag books on Amazon.co.uk ...
Document of Title
A term to mean that possession of the specified document entitles the holder to control of the goods listed in that document.
Be alert for small craft advisories. These warnings mean that there could be winds up to 20 knots, plus 3 foot seas. such conditions are hazardous for boats under 24 feet.
Zulu
Used to indicate times measured in Coordinated Universal Time, a successor to Greenwich Mean Time, both of which are time standards not affected by time zones or seasons.
A B C D E F G H I J K L M N O P Q R S T U V W X Y ...
Even keel - when a ship floats properly without any list. Also said to mean a situation is well in hand, everything in order. "He's got everything on an even keel." ...
On receiving a distress call, the time may not seem right to carefully study a nautical chart. However, if the chart is available, the knowledge gained could mean the difference between locating and successfully helping out at a water accident or a ...
These are just a few of the seafaring terms that have become part of our common language. But where do they come from, and what do they really mean?
In the confined spaces of your boat's bilge, however, one spark plus one small gasoline leak can mean disaster. Propane, CNG, charging batteries, and even methane (holding tanks) pose a potential for flammable gas leaks.
Motor yachts typically have one or two internal combustion engines that burn diesel fuel. Biodiesel for marine propulsion is in the experimental stage (ie Earthrace). Fuel costs generally mean motor yachts are more expensive to operate than sailing ...
GMT- Greenwich Mean Time, the time at 0 degrees longitude.
GRAB RAILS - Hand-hold fittings mounted on cabin tops and sides for personal safety when moving around the boat.
GROUND TACKLE - A collective term for the anchor and its associated gear.
If however, a vessel held a downwind course for any length of time prior to gybing, it was customary to over haul the ropes to stop them chaffing the sails. Crews were sent aloft to overhaul buntlines and gradually the word has come to mean to ...
Privileged Vessel (Stand On Vessel)- The ship with the right of way. This vessel shall keep her course and speed while the other gives way. However, this does not mean this vessel should not take action to avoid a collision.
The bow moves toward one side of the intended course. Zulu Used to indicated times measured in Coordinated Universal Time, a successor to Greenwich Mean Time. A time standard that is not affected by time zones or seasons.
 See also: Boat, Line, Sailing, Point, Sail
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