Structural pieces running fore and aft between the beams.

Secure hatches and loose objects both within the hull and on deck.

At a considerable distance.

A charge made for lifting articles too heavy to be lifted by a ship's normal tackle.

Is the property of a substance that gauges the potential or driving force for the flow of heat.

Flow of air under specific conditions required at a particular point.

A term indicating a temperature relationship between two temperatures or temperature variation between two points.

The bearing of an object after magnetic variation has been considered, but without compensation for magnetic deviation.

The windward side (from where the wind is blowing).

Abbreviation for "Not Otherwise Indexed."

Time and date for payment of a draft.

To haul in or bind something together in order to create more space.

Said to weigh.

Is the ratio of the polytropic compression energy transferred to the gas to the actual energy transferred to the gas.

(1) Said of ship's head when it moves away from wind, especially when tacking. (2) To discharge a crew and close Articles of Agreement of a merchant ship.

Metal strip and lead fastener used for locking freight car or truck doors. Seals are numbered for record purposes.

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

On square-rigged ships, the blocks attached to those yards on which studdingsails were set.

Ice pack whose limits cannot be seen from ship.