In sailboat racing, a tactical maneuver to lock in a competitor by tacking on them in close proximity so they can not tack from under your boat and they start to lose speed due to your sails blocking their sails.

Flapping (of sails)

Loaded containers moving within the railroad system that are not clearly identified on any internally generated reports.

A type of journal bearing in centrifugal air compressors.

A structure of heavy timbers placed between ground ways and cradle to support the ship during launching.

A wire or rope contrivance placed around cargo and used to load or discharge it to/from a vessel.

In general the line, web straps, cable or chains attached to a heavy object to lift it.

To let a cable go and stand out to sea.

A vessel's berth between two piers.

To let go by unshackling, as a cable.

Is the internal leakage within a rotary compressor. It represents gas at least partially compressed but not delivered. It is experimentally determined and expressed in CFM to be deducted from the displacement to obtain capacity.

Is the speed required of a rotary compressor to maintain a given discharge pressure, supplying leakage only (zero actual output). It is an experience factor.

A bend or hitch used to attach a line to a ring or spar so that by pulling the end of the line, the hitch will come free. This is done by passing a bight of the line under the other part so that when strain is applied the bight is jammed. A pull on the en ...

Another term for a marine railway.

Loose and broken ice in bays, or along exposed edges of floes.

A vessel of amy rig, mounting between 18 and 32 guns.

Chest, or compartment, in which is stowed clothing for issue to crew.

Compartment in which clothing for issue to crew is stowed.

Crew store managed by crew members offering everything from snacks to toiletries. Originally the name given to clothing that was issued to seamen.

The opening between the jib and the mainsail. Wind passing through this opening increases the pressure difference across the sides of the mainsail, helping to move the boat forward.