Man Overboard

The closeness of agreement among a number of consecutive output values measuring the same input value under the same operating conditions, approaching from the same direction. Usually measured as nonrepeatability but expressed as repeatability, a percenta ...

Stemming the tide or sea means to head the vessel's bow directly into the current or waves. Overcome adverse circumstances.

At or towards the stern or rear of a ship.

Marks of identification.

A black ball visible in all directions, displayed in the forward part of a vessel to indicate that the vessel is anchored.

For Our Guidance

A course marked by buoys or ranges measuring one nautical mile. Measured miles are used to calibrate logs.

Any raised portion of a vessel/s hull above an upermost continuous deck such as a poop, bridge or forecastle and extending from side to side of the vessel.

A rotating fitting used to keep a line from tangling.

One mole is the mass numerically equal (in grams) to the relative molecular mass of a substance. It is the amount of substance of a system that contains as many elementary units (6.023 exp23) as there are atoms of carbon in 0.012 kg of the pure nuclide C1 ...

A solution or process used to loosen or remove corrosion products such as scale or tarnish.

To move cargo from one place to another.

Single Side Band

Descriptive treatment of fracture, especially in metals, with specific reference to photographs of the fracture surface. Macrofractography involves photographs at low magnification (< 25x); microfractography, photographs at high magnification (>25x)

A general term for the emhrittlement, cracking, blistering. and hydride formation that can occur when hydrogen is present in some metals.

The probability distribution of random errors, typically a normal distribution with a zero mean.

An aneroid barograph designed to record atmospheric pressure variations of very small magnitude.

A direction of forty-five degrees or less from the stern.

An instrument which measures the rate of evapotranspiration. It consists of a vegetation soil tank so designed that all water added to the tank and all water left after evapotranspiration can be measured.