Behind, toward a vessel's stern.
Off the side, amidships, at right angles to the fore and aft line.
Not made fast, floating loose, at mercy of wind and current.
A directional term indicating the rearward or back area of the vessel. Opposite of fore.
Touching or stuck on the bottom.
In front of the vessel, forward; opposite of astern.
Above deck, usually in the rigging.
In or toward a vessel's middle part, between the sides or between bow and stern.
Device used to secure vessel to bottom of body of water.
At any point behind the vessel, backward.
At right angles to the fore-and-aft line of a vessel.
The position of anchor as it is raised clear of the bottom.
To turn over, upset.
To let go a line, as to cast off a bow line.
Center of Buoyancy
In mechanical physics, this is the averaged spatial location of the force of buoyancy acting upon a object.
Center of Gravity
In mechanical physics, this is the averaged spatial location of the force of gravity acting upon a object. For objects small compared to the variation in the gravity field, this is at same location as the center of mass.
Center of Mass
In mechanical physics, this is the averaged spatial location of the mass of the object. The motions of the entire body can be described by the motions of this point trough space and the rotation of the body around this point.
The chine is an angle on the bottom of the vessel where the flair decreases as the hull transitions from the bottom of the vessel to the sides.. A hard chine is where that angle decreases rapidly making a sharp angle. A hard chine kayak has a well defined turn where the "V" comes up to the side. This hard chine gives a unique feel to a kayak giving very good stability even in a narrow craft.
Below is a schematic of a hard chine. Round hull vessels have no chine.
1. A heavy fitting of metal or wood with two jaws curving inward, through which a rope or cable may be run.
2. A block or wedge placed under something else to keep it from moving
3. To fit with or secure by a chock
A fitting, secured to the deck, mast, or spar, having two projection horns to which lines are made fast.
Position of the kayak when one end fills with water and the other end sticks up in the air. Kayak is rendered useless. z
The raised edge around the cockpit. Its primary purpose is to divert water from entry into the cockpit area. In touring and whitewater vessels, a fabric skirt is placed around the coaming to keep water from entering the cockpit when the edge of the cockpit is below the water.
Well or sunken space in the deck. A semi-enclosed area where the paddler sits.
Combined effect of variation and deviation.
Intended direction for a vessel to travel.
Course Made Good
Actual vessel track or course after adjusting for such factors as current and leeway.
The cross section is the shape of the kayak from one side to the other, perpendicular to its center line. A round hull is extremely fast but very unstable where a flat hull is initially stable but very slow. Flared sides give comfortable secondary stability because of added buoyancy when leaning to the side. A "V" bottom vessel has a defined angle at the keel.
Horizontal covering resting on the deck beams of a vessel, the floor of any compartment.
The mass of an object divided by its volume.
Differences between the compass reading and an actual magnetic direction caused by magnetic forces in the vicinity of the compass, which are usually the result of masses of metal, speaker magnets, etc
A type of hull that plows through the water, displacing a weight of water equal to its own weight, even when more power is added
The depth a vessel sinks when afloat, as measured vertically from the water line to the lowest point. The vessel needs this much water depth or it will be aground.
Object streamed from vessel to decrease speed.
A receding current.
That vessel which, according to the applicable Navigation Rules, must give way to the stand-on vessel. Superseded the term burdened vessel.
An anchor and anchoring gear.
Pronounced "Gun'l". The top outside edge of an open vessel such as a canoe or row boat. Where hull and deck meet for vessels with a deck.
I J K
L M N
O P Q
Magnetic variation. The difference, east or west, between magnetic north and true north, measured as an angle. Magnetic variation varies in different geographic locations
Velocity Made Good
Actual vessel speed after adjusting for such factors as current and leeway.
Wind veers when its direction changes clockwise. Opposite of back.
Kayaks are designed in a number of sizes, lengths, widths and shapes. A useful common measure when comparing them is to look at their total volumes. Total volume is a fairly accurate indicator of a kayak's gear carrying capacity. How the volume is distributed has a significant influence on the storage volume available. For instance a kayak with fine ends and a high amount of volume in the cockpit area would have less usable storage capacity than a vessel with a more equal volume distribution. Storage can also be better in kayaks that have more volume in the ends as it is easier to pack more items into the bigger ends.
The disturbed water following a moving vessel.
The rush or sweeping of waves on a bank, shore or vessel.
The line on the hull of a vessel to which the surface of perfectly calm water rises when the vessel is motionless.
Movement of a vessel through the water such as headway, sternway or leeway.
The turning of a vessel due to the action of the wind.
Wetted Surface Area
The actual area of the hull that is in contact with the water. The more wetted surface area, the more effort required to move the vessel through the water. A narrow, rounded hull shape minimizes wetted surface area. Carried to extremes, the kayak can become too narrow to sit in or too unstable to paddle.
Man-made structure parallel to the shoreline for loading, unloading or making fast.
Method of binding the end of a rope with small twine.
A general term describing the amount of exposure of an object to the force of the wind.
The direction from which the wind is blowing. Opposite of leeward.
To swing off course, caused by the action of waves or poor steering.
If you didn't find it, try here.