Measure of alkalinity or acidity in water and water containing fluids. Can be used to determine the corrosion inhibiting characteristic in water based fluids. Typically, pH > 8.0 is required to inhibit corrosion of iron and ferrous alloys in water based f ...

Power as calculated from compressor-indicator diagrams.

The energy in foot pounds required to compress polytropically and to transfer one pound of a given gas from one pressure level to another.

To turn the boat away from the wind. also Fall Off.

Cargo moving under Customs control where duty has not yet been paid.

(1) A term signifying an inclination of an object from a perpendicular; to turn anything so that it does not stand perpendicularly or square to an object. (2) Those timbers in a ship near the bow or stern which are sharply angled from the keel. (3) The op ...

The names of battles or individual ship actions in which a warship has taken part, usually displayed in a prominent place on a ship as a source of pride in her name. Known as Battle Stars in the U.S. Navy.

An opening in a ship's side, provided with a glazed lid or cover for the admission of light.

A propeller that can have the pitch of its blade changed to reduce drag when not in use.

The drying of compressed gases other than air. Equipment size, choice of materials and other specifications may be decidedly different for drying gases other than air because of the specific properties of the gases. Properties include specific gravity, sp ...

The part on the object which is hauled upon.

Customs form permitting in bond cargo to be moved from one location to another under Customs control, within the same Customs district. Usually in motor carrier's possession while draying cargo.

Openings in the bottom or transom of a boat to drain water when sailing.

An officer taking his turn as officer of the watch.

Book in which is kept a reckoning of items of cargo received or discharged from a hatch or vessel.

An empty wine bottle after its contents have been drunk.

To turn the boat head-to-wind so as to go about on the opposite tack

A sailboat with two masts. Generally, the shorter mizzen mast is aft of the main mast, but forward of the rudder post, while a similar vessel, the yawl, has the mizzen mast aft of the rudder post. The mizzen mast of a ketch is larger than that of a yawl.

Filled with water but afloat.

In general, a person employed in a sea-going vessel. In some cases, applied to a seaman who works on deck.