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 ...

A rope attached to the clew of the foresail and rove through a block on the swinging boom. Used for guying the clews out when before the wind.

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

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

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

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

An instrument that measures atmospheric pressure in inches or millibars of mercury

Time saved, reward for quick turnaround in dry cargo only.

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 ...

Is any gas or gas mixture in which one or more of the constituents is at its saturated vapor pressure. The constituent at saturation pressure may or may not be water vapor.

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

The part on the object which is hauled upon.

A float with a flag at the top of a pole. Used to mark a position such as for a mooring, a race or a man overboard.

A charted feature or chosen position on a chart

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

Filled with water but afloat.

A charge for services performed in connection with floating elevators.- Charges assessed for the handling of grain through grain elevators.

A fitting holding a boom or gaff to the mast.

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.

Abbreviation for "Government Bill of Lading."