Negligence or fraud on the part of the Master or crew resulting in a loss to the owners.

The outboard hulls of a trimaran.

ACRONYM - A unit of electrical current or rate of flow of electrons through a conductor. One volt across one ohm of resistance causes a current flow of one ampere. One ampere is equal to 6.25 x 1018 electrons per second passing a set point in a circuit. A ...

In the direction of the vessel's head. Wind ahead is from the direction toward which the vessel's head points. In a forward direction.

To push a sail out so that the wind fills the opposite side, thus slowing the boat down.

The forwarding agreement or carrying agreement between shipper and air carrier and is issued only in nonnegotiable form.

An old maritime expression meaning "immediately", as "let go amain" (drop the anchor at once!).

A colorless gaseous compound of nitrogen and hydrogen used in refrigeration and in making of fertilizers and explosives. Found in some ambient air conditions.

That part of the ocean lying below 300 fathoms from the surface.

The angle a celestial body makes with the horizon.

A type of compression where no heat is transferred to or from the gas during the compression process.

All (not just 98%) particles larger than the stated micron size have been removed from the fluid being filtered.

A term of measure referring to 42 gallons of liquid at 60o F.

The act if striking or collision of a moving vessel against a stationary object.

Placing a port on a vessel's itinerary because the volume of cargo offered at that port justifies the cost of routing the vessel.

To remove the ballast from the a ship.

Device that permits passage between regions of differing air pressures, most often used for passage between atmospheric pressure and chambers in which the air is compressed. A typical modern air lock consists of a cylinder of steel plate with airtight doo ...

a filter medium primarily intended to hold soluble and insoluble contaminants on its surface by molecular adhesion.

An act beyond human control, such as lightning, flood or earthquake. – An unpredictable situation which is beyond the power of man. A natural event, not preventable by any human power, such as flood, storms, or lighting usually quoted as “force majeure” ...

A member of the steward's department who served meals to officers and crew.