Covers for closing up hatchways.

A wedge-shaped piece of timber used to secure barrels against movement.

Standard cubic feet per minute., SCFM or scfm. Flow of free air measured at some reference point and converted to a standard set of reference conditions (e.g., 14.4 psia, 80

A pointed stern, such as those on a canoe.

Unlit navigational aids for use during the day. They mark a bearing to a channel when they are lined up one above the other. Leading lights are lighted at night and serve the same purpose.

Material that stores energy, although mass will also retain coolness. The thermal storage capacity of a material is a measure of the material's ability to absorb and store heat.

See Gunwhale

Areas of the ocean lying between the mostly westerly winds of the higher latitudes, and the trade winds. These areas usually have prolonged calms, and in the older days of sail it could take quite a while to clear out of this area, by which time the seame ...

The vertical absorption of a liquid into a porous material by capillary forces.

Also known as LTL or LCL.

A compressor designed to compress air or gas without contaminating the flow with lubricating oil. Piston rings and packing are usually made of TFE-based materials or carbon or other synthetic material that operate without lubrication.

A protective cover wrapped around the mast at the deck on a keel stepped boat to prevent water from entering the boat.

Industry-related: A point at which freight moving from one territory to another is interchanged between transportation lines.

Atmosphere

A stationary, spirally shaped passage that converts velocity head to pressure.

A halyard used to raise the spinnaker.

A sailor's paradise where amusements were plentiful, and the women were accommodating.

A longitudinal stiffener for the side of a ship, made of angle bar, bulb angle channel or plates, etc. Depending upon their locations, stringers are known as bilge stringers, side stringers, hole stringers, etc.