Smaller powered boat used to provide steerage-way when not under sail.

Slang name for the Q Flag. Also an old term for yellow fever.

A man employed in a vessel of war to take charge of a storeroom; as, boatswain's yeoman the man that has charge of the stores, of rigging, etc.

Year of Grace Survey

Evidence of plastic deformation in structural materials. Also called plastic flow or creep. See also flow.

The first stress in a material, usually less than the maximum attainable stress, at which an increase in strain occurs without an increase in stress. Only certain metals - those that exhibit a localized, heterogeneous type of transition from elastic defor ...

The stress at which a material exhibits a specified deviation from proportionality of stress and strain. An onset of 0.2% is used for many metals.

The stress level in a material at or above the yield strength but below the ultimate strength, i.e., a stress in the plastic range.

A piece of wood placed across the head of a boat's rudder, with a rope attached to each end, by which the boat is steered.

The portion of a safety/relief valve that surrounds the spring. The spring housing.

York-Antwerp Rules 1950 Rules to settle General Average claims. Their use is normally stipulated in the B/L or C/P.

Established the standard basis for adjusting general average and stated the rules for adjusting claims.

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An octagonal shaped shelter that originated in Mongolia, and traditionally made from leather or canvas for easy transportation.