Advice on matters of navigation and safety issued by AMSA.

Related Terms

HAVEN

A place of safety for vessels

GRID NAVIGATION

Navigation by the use of grid directions

HARMFUL INTERFERENCE

Any emission, radiation or induction which endangers the functioning of a radionavigation service or of other safety services or seriously degrades, obstructs or repeatedly inter- rupts a radio-communication service operating in accordance with the International Telecommunications Union Regulations.

HOMING

Navigation toward a point by following a signal from that point. Radiobeacons are commonly used for homing.

INERTIAL ALIGNMENT

The process of orienting the measuring axes of the inertial components of inertial navigation equipment with respect to the coordinate system in which the equipment is to be used. inertia

INLAND RULES OF THE ROAD

Officially the Inland Navigation Rules; Rules to be followed by all vessels while navigating upon certain defined inland waters of the United States.

SOLAS

International Convention for the Safety of Life at Sea, 1974, as amended

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.

OUTWARD BOUND

To leave the safety of port, heading for the open ocean.

INTEGRATED NAVIGATION SYSTEM

A navigation system which comprises two or more positioning systems combined in such manner as to achieve performance better than each constituent system.

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