[meaning]

The motion of a vessel when she goes off from her course.

A beam attached to the top of the floors to add strength to the keel on a wooden boat.

A large piece of fabric designed to be hoisted on the spars of a sailboat in such a manner as to catch the wind and propel the boat.

A drive arrangement for power transmission to compressors.

A small freshwater mollusk that was accidentally introduced to North American waters via ballast water from a transoceanic vessel. The zebra mussel has had significant negative economic and ecological effects: It clogs water intake pipes and attaches to a ...

The Quebec pennant is flown when first entering a country, indicating that the people on the ship are healthy and that the vessel wants permission to visit the country. The flag means "My vessel is healthy and I request free pratique.

A spar from which a square sail is hung. A long spar, tapered at the ends, attached at its middle to a mast and running athwartships at right angles to the mast; used to support the top of a square sail. The yard can pivot (be braced) around the mast. At ...

To keep the sails full and drawing

Liquid flows through into the valve and flows out through one of two tubes which is selected by changing the angle of a lever.

The distance traveled after correction for current, leeway and other errors that may not have been included in the original distance measurement.

[meaning]

A navigational light which turns on and off in a regular pattern, but is on more than it is off, so the period of light is longer than the period of darkness.

The national flag flown on a jackstaff on the bow of naval ships while anchored.

A document prepared by a transportation line at the point of a shipment; shows the point of the origin, destination, route, consignor, consignee, description of shipment and amount charged for the transportation service. It is forwarded with the shipment ...

A device worn around a person's body that can be tethered to jack lines to help prevent a person from falling overboard.

[meaning]

an antiwear additive found in many types of hydraulic and lubricating fluids. Zinc dialkyldithiophosphate.

A mast that is stepped (placed) on the keel at the bottom of the boat rather than on the deck. Keel stepped masts are considered sturdier than deck stepped masts.

Measuring point for compressor acceptance test. Temperature at the compressor inlet flange.