Sperry Introduces New Doppler Navigation Sonar —Literature Available

The Sperry Division of Sperry Corporation has announced the development of a new doppler navigation sonar system which will give scientific and commercial marine vessels the ability to know their position continuously with errors measured only in feet, according to the company.

The system can be used aboard surface vessels and manned or unmanned underwater vehicles.

By using doppler sonar techniques, the system develops accurate position data using the ocean bottom as a velocity reference, thus making the system independent of navigation errors caused by unknown subsurface currents. Two-axis sonar data enable the system to measure movement of the vessel both fore/aft and athwartship. Altitude above the ocean floor is also determined.

When used in conjunction with the Sperry Mk 47 subminiature gyrocompass, the system provides all the data required to navigate from one point to another. A preselected track can be followed if desired.

Morton J. Howard, marketing manager for this product, said that the system can be used aboard oceanographic vessels, geological survey vessels, dredges, oil pipeline inspection submersibles, cable-laying submersibles, underwater work vessels, and scientific submersibles.

For complete free literature on the new doppler navigation sonar system, Write 56 on Reader Service Card

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.