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

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

The oxidation of conventional hydrocarbon lubricants when they reach the end of their useful life and begin to breakdown. Can cause operating temperature increase, increase brake horsepower and plugs separator, can destroy air end.

The part on the object which is hauled upon.

A fitting holding a boom or gaff to the mast.

Upward displacing swells.

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

Place where a ship should report when passing i.e. when approaching a port.

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

Lift anchor off the bottom.

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

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

The medium or material that does the actual filtering or separating. May be paper, wire mesh, special cellulose, inorganic plastic, or a combination.

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

To continue sailing under the same canvas despite the worsening of the wind.

An instrument for measuring, testing, or registering.

Bell used for striking the half hours of each watch.

An absolute temperature scale. ((

Energy terms

Sailing other than close; hauled or into the wind (wind astern).