Underwriters Laboratories

Electronic Chart System

A constant which describes the performance of a wind vane in response to a step change in wind direction. It is calculated from the relative amount of overshoot on two successive swings (half cycles) of a decaying oscillation. This specification is dimens ...

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

Area of a computer or other device where various logic and control elements are interconnected. Often a printed circuit board into which other circuit boards plug at right angles.

An income tax allowance to single people including widows/widowers, separated spouses etc who are.

A type of rain gauge shield consisting of freely hanging, evenly spaced slats arranged circularly around the gauge. The advantage of this shield is that the slats do not easily accumulate snow, permitting its use on unattended gauges. See rain gauge shiel ...

A letter of credit that contains a limited engagement clause which states that the issuing bank promises to pay the beneficiary upon presentation of the required documents at its counters or the counters of the named bank.

An instrument which determines the altitude of an object with respect to a fixed level. There are two general types of altimeters: (a) the pressure altimeter, which gives an approximate measure of altitude from a pressure measurement and an assumed standa ...

A financial ratio which is similar to the current ratio, but more stringent. It is defined.

A recording anemoclinometer.

The reply to an officer's order signifying that he is understood and will be obeyed (I understand).

Subcommittee on Radio Communication and Search and Rescue (IMO)

To remove the ballast from the a ship.

A counterclockwise change in wind direction. Backing winds with height are indicative of cold air advection (CAA).

Tanker Caustic Soda.

(ARM)In the US, a mortgage in which the interest rate is liable to change over the term of the loan and.

Korean Register of Shipping (Class Society)

The stress at which a material exhibits a specified deviation from proportionality of stress and strain. An onset of 0.2% is used for many metals.

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