Electronic Chart Display and Information SystemBased on vectorial representation of features, this system is the best available as it can be coupled to many other devices. Unfortunately since the availability of GPS positioning many hydrographic informati ...

An arch to mount the radar, usually at the stern of the boat.

A plot showing the relationship of stress, S, and the number of cycles, N, before fracture in fatigue testing.

When from some cause a vessel's form is so altered that the ends of the keel are much above the level of its midship portion, it is said to be "sagged." The opposite of hogged.

Free Carrier. A modern equivalent of FAS used in intermodal transport where goods are transferred at a nominated forwarders premises, depot or terminal but not actually on board vessel. Free Carrier Free Carrier means that the seller delivers the good ...

[meaning]

When the terms and conditions of a charter party have been agreed, except few minor details.

A pneumatic hand held percussive drill designed as a boring tool.

In radiometry, a measure of the intrinsic radiant intensity emitted by a radiator in a given direction.

When all the sails are aback.

Brake Horse Power.

All the various sails carried on board a yacht.

See gain.

A four sided sail used instead of a triangular main sail. Used on gaff rigged boats.

A gauge that measures engine revolutions per minute.

A Type of Standard Voyage Charter Party Issued by ASBA

Is a single shaft, positive displacement rotary compressor.

To attempt to contact another boat or shore, either by voice or radio.

[meaning]

Abbreviation for the pressure, temperature, and humidity data obtained by a radiosonde observation.