RIGHT

To return to an upright position after heeling over.

right position return

Related Terms

BREAKDOWN MAINTENANCE

Maintenance performed after a machine has failed to return it to an operating state.

breakdown_maintenance operating_state maintenance machine return

Radionavigation based on the measurement of the time differences in the reception of signals from several pairs of synchronized transmitters. For each pair of transmitters the isochrones are substantially hyperbolic. The combination of isochrones for two or more pairs of transmitters forms a hyperbolic lattice within which position can be determined according to the measured time differences

hyperbolic_navigation position time measurement combination hyperbolic hyperbolic_lattice lattice radionavigation

HOUR-GLASS EFFECT

A radarscope phenomenon which appears as a constriction or expansion of the display near the center of the plan position indicator, which can be caused by a nonlinear time base or the sweep plot starting on the radar indicator at the same instant as the transmission of the pulse. The phenomenon is most apparent when in narrow rivers or close to shore.

hour-glass_effect position radar time plan starting base indicator apparent display expansion phenomenon plot radarscope

HEELING ADJUSTER

A dip needle with a sliding weight that can be moved along one of its arms to balance magnetic force, used to determine the correct position of a heeling magnet.

heeling_adjuster position weight sliding balance dip dip_needle magnetic needle

BACK PRESSURE

The pressure encountered on the return side of a system.

back_pressure return pressure side

MOTION

The act, process, or instance of change of position. Absolute motion is motion relative to a fixed point. Actual motion is motion of an object relative to the earth. Apparent or relative motion is change of position as observed from a reference point which may itself be in motion. Diurnal motion is the apparent daily motion of a celestial body. Direct motion is the apparent motion of a planet eastward among the stars; retrograde motion, the apparent motion westward among the stars. Motion of a celestial body through space is called space motion, which is composed of two components: proper motion, that component perpendicular to the line of sight; and radial motion, that component in the direction of the line of sight. Also called MOVEMENT, especially when used in connection with problems involving the motion of one vessel relative to another.

motion vessel position line space relative_motion relative apparent apparent_motion celestial celestial_body component fixed

GOVERNOR SAFETY STOP

On throttling-type governors, the safety stop is a weighted arm that needs the support of a governor belt. If the belt breaks, the idler arm drops and shuts the steam supply valve to the engine. On Corliss units, the flyballs fall to the lowest position and knock off the safety cams; the cams disengage the catch blocks on the steam intake valves so that no steam is admitted to the engine.

governor_safety_stop throttling_type_governor steam safety valve position support arm belt stop fall governor idler valves

INTERFEROMETER

An apparatus used to produce and measure interfer- ence from two or more coherent wave trains from the same source. Used to measure wavelengths, to measure angular width of sources, to determine the angular position of sources (as in satellite track- ing), and for other purposes.

interferometer position satellite wave measure width angular apparatus

OFF STATION

Not at the position charted

off_station position

OF BUOYS