Dangerously steep and breaking seas due to opposing currents and wind in a shallow area.

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.

To charge more than the proper amount according to the published rates.

Measuring point for compressor acceptance test. Pressure at the point of use.

Maintaining position over the ground when underway in a river or tidal stream.

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 ...

When the sheer curves down towards the bow and stern.

Stout line or cable fore and aft around the deck of the boat to keep crew from falling overboard.

A double block where the two sheaves lie in a plane one below the other, rather than alongside each other.

A volume. Pounds per hour.

A small boat intended to be used only for short sails or racing.

The ability of a non-water-soluble fluid to form an emulsion with water.

Lift anchor off the bottom.

Upward displacing swells.

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.

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.

Energy terms

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

Abbreviation for "Government Bill of Lading."

The last buoy as a boat heads to sea.