Yards held rigidly perpendicular to their masts and parallel to the deck. This was rarely the best trim of the yards for efficiency but made a pretty sight for inspections and in harbor.

Related Terms

CONTAMINANT FAILURE

Any loss of performance due to the presence of contamination. Two basic types of contamination failure are: Perceptible - gradual loss of efficiency or performance, and Catastrophic - dramatic, unexpected failure.

GYROSCOPE

A rapidly rotating mass free to move about one or both axes perpendicular to the axis of rotation and to each other. It is characterized by GYROSCOPIC INERTIA and PRECESSION. Usually shortened to GYRO. The term also refers colloquially to the GYROCOMPASS.

LAMINAR FLOW

A flow situation in which fluid moves in parallel lamina or layers.

SHEAR RATE

The difference between the velocities along the parallel faces of a fluid element divided by the distance between the faces.

BYPASS FILTRATION

A system of filtration in which only a portion of the total flow of a circulating fluid system passes through a filter at any instant or in which a filter having its own circulating pump operates in parallel to the main flow.

GROIN

A structure (usually one of a group) extending approximately perpendicular from a shore to protect the shore from erosion by tides currents, or waves or to trap sand for making a beach.

GRID PARALLEL

A line parallel to a grid equator, connecting all points of equal grid latitude

HORIZONTAL

Parallel to the plane of the horizon; perpendicular to the direction of gravity

HORIZONTAL

Parallel to the plane of the horizon; perpendicular to the direction of gravity

WOBBLE PLATE

Type of compressor designed to compress gas, with piston motion parallel to crankshaft.

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